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Why tangential componenet of electric field is zero in pure conductor?
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Why electric field lines are always perpendicular to the surface of the conductor?
to save the static character of conductor in the presence of electric field
What are three facts about electric field lines?
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 a large enough electric field is applied how does an electric conductor become an insulator?
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.
What is the principle of electrostatic shielding?
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.
Can we create magnetic field to electric field?
we can create electromotive force (and electric current) by changing magnetic field linked with a conductor by the principle of electromagnetic induction which is governed by the Faraday's and Lenz's law. But electric field is created by statical electricity.
When ac passes through a conductor which fields are produced a magnetic field or an electric field?
when ac passes through a conductor, the field produced is an electric field
Why electric field lines are always perpendicular to the surface of the conductor?
to save the static character of conductor in the presence of electric field
Can Magnetism cause an electric current to flow in a conductor?
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.
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), the frequency is zero, the electric field is distributed inside the whole conductor.
The process of generating an electric current from the motion of a conductor in a magnet field is?
The process of generating an electric current from the motion of a conductor in a magnetic field is known as induction.
What are three facts about electric field lines?
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 a large enough electric field is applied how does an electric conductor become an insulator?
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.
What is the cause of an electric motors electric field to collapse?
there is a some reason for the collapse of electric field -- winding is affected by overcurrent and vibration., or the conductor is earthed.
What is the principle of electrostatic shielding?
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.
If a conductor is placed in a uniform electric field does the conductor gain any charge?
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 charge.
How electric current causes magnetic field around conductor?
Electric current causes magnetic field around conductor by producing a moving electric charges and the intrinsic magnetic moments of an elementary particles that is associated with a fundamental quantum property.
Created around a conductor when electrons flow through that conductor?
Then an 'electrical current' is said to be present in the conductor.
