If a conductor placed in electric field is there any emf induced in the conductor?
emf is the energy which is only there tf theur is some potential difference so no emf
Current is induced and not produced. when an electric wire is passed through magnetic field the current is induced in the electric wire, this electric wire is enamelled copper conductor of a rotor. Answer Current is never 'induced' into a conductor. It is a voltage that is induced. If that conductor is then part of a complete circuit, then the induced voltage will cause a current to flow. The induced voltage will occur even when… Read More
one condition for the above question is either conductor or magnetic field must be rotating.considering rotating field and stationary conductor,the magnetic flux will be cut up by conductor resulting in the induced emf in the conductor.
Before you can understand how electrical energy is supplied by your electric company, you need to know how it is produced. A magnet and a conductor, such as a wire, can be used to induce a current in the conductor. The key is motion. An electric current is induced in a conductor when the conductor moves through a magnetic field. Generating an electric current from the motion of a conductor through a magnetic field is… Read More
the conductor is placed in between the magnets,the dc supply is given to the these magnets to make a electromagnets and intial motion is given to the conductor manually or electrically to cut the flux automatically emf will be induced
EMF is induced in a conductor by a moving or fluctuating magnetic field.
A magnetic field is induced around any conductor carrying an electric current.As explained in the Oersted Theory.
It is the voltage generated by a conductor or coil moving in magnetic field, e.g. the winding in an electric motor.
The conductor will not gain any charge that is not placed on it by you. However, the electric field will displace the free charges already within the conductor (by its nature) such that there will be a non-uniform surface charge density. Remember: a conductor must have zero electric field inside it, so the charges rearrange to cancel the external E-field. Again, this only repositions the existing charge, but it does not add or remove any… Read More
The method of protecting a region from the effect of electric field is called electrostatic shielding. The electric field inside the cavity of a conductor is zero. Therefore, any instrument or an appliance can be placed in the cavity of a conductor so that it may not be affected by the electric field.
The magnitude of the voltage induced in a conductor moving through a stationary magnetic field depends on the and the of the conductor?
The magnitude of the voltage induced in a conductor moving through a stationary magnetic field depends on the length and the speed of the conductor.
Here is A Simple answer for this question as you know that emf is induced in the conductor when there is change of flux linkage to the conductor which gives rise to the inducement of electric field in the conductor that provide drift velocity to the electrons hence emf is induced in the conductor but the last only till the change in flux in progress and becomes zero as soon as the flux linkages becomes… Read More
A magnetic field is induced by the rapid alternation of an electric field. Magnetic fields have a south and north pole.
Electromagnetic induction is the process of inducing electric current in a coil with the help of a magnet. Whenever a conductor is moved through a magnetic field, or the magnetic field fluctuates in strength (as with an AC electromagnet), a current will be induced in that conductor. Induction cooktops work by passing a large AC current through a conductor under the cooktop, creating a fluctuating magnetic field which induces an electric current through the cookware… Read More
The force experienced by a current carrying conductor placed in a magnetic field is strongest when that conductor is placed perpendicularly to the magnetic field.
At what degree does a conductor have to pass through a magnetic field to get maximum induced current?
The induced current is maximum when the axis of the conductor, its velocity, and the magnetic field lines are all mutually perpendicular.
A magnetic field
when a conductor moves accross a magnetic field or when magnetic field moves with respect to a stationary conductor for current to be induced, there must be relative motion between the coil and the magnetic.
In this context, 'negative' and 'positive' are used to indicate the sense, or direction, of the induced voltages, as voltages do not have electric polarity (+ or -). The direction of the voltage induced into a conductor is determined by the direction of that conductor relative to the magnetic field. As the coil rotates, the directions of each side of the coil reverse relative to the field, and the induced voltages reverse too.
Whenever a conductor passes through a magnetic field, a voltage (not current!) is induced.
when ac passes through a conductor, the field produced is an electric field
to save the static character of conductor in the presence of electric field
There is no such thing as an 'induced current'. When a conductor cuts through a magnetic field it is a potential difference that is induced into that conductor. If the conductor forms a closed circuit (e.g. supplies a load), then a current will flow through the circuit. It is incorrect to call such a current an 'induced current'.
A magnetic field induces an electric current. Hence, by placing the iron bar close to the magnet, a current is induced; and so we are, in effect, creating an electromagnet.
Moving a conductor through a magnetic field a voltage is induced in the conductor is called what type of induction?
Moving a conductor through a magnetic field will produce alternatinc current (AC).
Yes, a MOVING magnetic field will cause electric current to flow in a conductor. Conversely an electric current flowing in a conductor will cause a magnetic field.
A current of electricity is inducted by passing a coil of wire wrapped around a conductor through a what?
Current can be induced in a conductor by passing said conductor through a magnetic field. Answer The word you are looking for is 'induced', not 'inducted'. Current is not induced into a conductor; it's voltage that's induced. Current will only result if the conductor forms a closed loop or is connected to some type of load.
When an electric field is applied to a conductor does the electric field develops within the conductor or around the conductor?
The electric field will develop inside the conductor, depending on the characteristics of the electric field -- in a steady state (DC) or in an alternating mode (AC). The higher the frequency of oscillation, the shallower the field will reside in the conductor -- skin depth (check the related link). Hence, when the frequency is high, only the few mm's of the outer skin participates in the action (AC electrical conduction.) In steady state (DC)… Read More
If a conductor moves in an magnetic field, a voltage is induced.
The conservative nature of induced electric field is due to time varying magnetic fields. This occurs because the work done in moving a charge in a closed path in this field is not zero.
An induced electric field is produced exactly in opposite direction within the dielectric
Electricity produced by magnetism is called induced voltage. It is by induction, the passage of a magnetic field across a conductor, that a voltage will be induced ("caused" or "made to happen") in that conductor.
20 The magnitude of the voltage induced in a conductor moving through a stationary magnetic field depends on the and the of the conductor?
speed and lenght
electricity is induced
The magnitude of the voltage induced in a conductor moving through a stationary magnetic field depends on the?
The speed of the conductor through the magnetic field, which translates into the number of magnetic lines of force the conductor can cut per unit time, will determine the magnitude of the voltage induced in the conductor. As an additional factor, if a longer piece of wire can be moved through the magnetic field, it will induce more voltage as well. The more speed we can put on the conductor, and the more of the… Read More
If you move a conductor - e.g., a wire - through the magnetic field, a voltage will be induced in the conductor. If there is a closed circuit, a current will flow.Note that the current will induce a magnetic field which counters the direction of the movement - therefore, work is required to keep the wire moving, and obviously, energy is conserved.
1. Electric field lines of force originate from the positive charge and terminate at the negative charge. 2. Electric field lines of force can never intersect each other. 3. Electric field lines of force are not present inside the conductor, it is because electric field inside the conductor is always zero. 4. Electric field lines of force are always perpendicular to the surface of conductor. 5. Curved electric field lines are always non-uniform in nature.
If you are referring to the voltage induced into a conductor moving through a magnetic field, then the FOUR (not three) factors are (a) the flux density of the field (teslas), (b) the velocity of the conductor (metres per second), (c) the angle at which the flux is being cut, and (d) the length of the conductor within the field.
The process of generating an electric current from the motion of a conductor in a magnetic field is?
The process of generating an electric current from the motion of a conductor in a magnetic field is known as induction.
An induced electromotive force (emf) is an induced voltage. Voltage (emf) causes current flow, and this induced voltage will cause a current that is called the induced current. We might also add that the induced current will cause a magnetic field to expand about the current path, and this field will "sweep" the conductor. The sweeping of the conductor by that expanding magnetic field will set up an emf that will oppose the emf that… Read More
This is an electric field.
An electric current, passing through a conductor, causes a magnetic field around it. Causing a magnetic field to move over a conductor, will induce an electric current in it.
Moving a magnetic field near an electric field or vice versa. Basically: Moving a magnet up and down near the wire. Or moving the wire up and down near a magnet. Answer Its voltage that's induced into a conductor, NOT current. Current will only flow, as a result of this induced voltage, provided a load is connected across the wire.
The electric field is weakened when a dielectric is inserted.
The magnitude of the voltage induced in a conductor moving through a stationary magnet field depends on the blank and the blank of the conductor?
speed and legnth
When there is relative motion between a magnet and a coil of wire, an electric current starts flowing in the coil. This phenomenon is called electromagnetic induction. When lines of a magnetic field cross the line of an conductor, electric current is induced in it.
An electric field lies perpendicular to the surface of a conductor. Its 'direction' is that of an isolated, positive, pole that is free to move within the field -i.e. from positive to negative.
a magnetic feild
If a very large electric field is applied on a conductor then a phenomenon of a dielectric breakdown takes place and it looses all its charge carriers to the nearest conductor. Hence becoming an insulator.
The molecules are directed against this electric field.
A dynamo is an electric generator. The basic principle is that, when a wire (or any conductor, for that matter) moves through a magnetic field, a voltage is is induced across the wire. This will cause current to flow.