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Does a current carrying conductor experience a force when kept parallel to the magnetic field?
Wiki User
∙ 12y ago
Yes. The force attracts the conductor to the magnetic field,
F= eVB = e(-V.B + VxB) = e[-V.B, ] =- eV.B when V and B are parallel!
Wiki User
∙ 12y ago
Wiki User
∙ 11y ago0.546 Pascals.
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Why does the current carrying conductor experiences a force when it is placed in magnetic field state Fleming's left hand rule?
The force on current carrying conductor kept in a magnetic field is given by the expression F = B I L sin@ So the force becomes zero when the current carrying conductor is kept parallel to the magnetic field direction and becomes maximum when the current direction is normal to the magnetic field direction. Ok now why does a force exist on the current carrying conductor? As current flows through a conductor magnetic lines are formed aroung the conductor. This magnetic field gets interaction with the external field and so a force comes into the scene.
Why is it that 2 parallel wires carrying currents in opposite directions repel each other?
two wires carrying currents in opposite direction repel each other because the magnetic field between the wires is strong than on the sides of the wires.wires will move towards the weaker magnetic field from stronger field
What does magnetoresistance do?
Magnetoresistance is an effect observed in (ferro)magnetic conductors. When applying an external magnetic field to the conductor, the resistance of the conductor changes. The resistance is minimized when the magnetic field is aligned parallel to the conductor, and maximized when the magnetic field is aligned perpendicular to the conductor. This effect was first observed by W. Thomson in 1856, and changes in resistance are usually below 1% at room temperature and higher at lower temperatures <5K For further reading: http://en.wikipedia.org/wiki/Magnetoresistance http://en.wikipedia.org/wiki/Electron_scattering
What is indused EMF?
a shifting magnetic field exposed to a conductor will cause electric current through the conductor. For this reason, you can get shocked by a power pole by holding a copper rod underneath it parallel to the wires. the energy directly between two wires is enough to burn you, that's why the high voltage ones are higher off the ground and aligned up and down.
Why ampere is base unit if it is derived from charge?
The ampere is the SI Base Unit or electric current. It is NOT derived from the charge (coulomb) but from the force resulting from its magnetic effect. The ampere is defined in terms of the force between two, parallel, current-carrying conductors due to the interaction of their magnetic fields. The coulomb, on the other hand, is an SI Derived Unit, based on the ampere and the second.
Why does the current carrying conductor experiences a force when it is placed in magnetic field state Fleming's left hand rule?
The force on current carrying conductor kept in a magnetic field is given by the expression F = B I L sin@ So the force becomes zero when the current carrying conductor is kept parallel to the magnetic field direction and becomes maximum when the current direction is normal to the magnetic field direction. Ok now why does a force exist on the current carrying conductor? As current flows through a conductor magnetic lines are formed aroung the conductor. This magnetic field gets interaction with the external field and so a force comes into the scene.
Can a magnetic field exert a force on a stationary current-carrying wire?
Surely but current direction has not to be parallel to magnetic field. Force on the wire = B I L sin@ When @ is zero, ie parallel then F = 0 If @ = 90 then force will be max. F = B I L Here L is the length of the current carrying conductor
When a magnetic field is parallel to a current-carrying wire what is the force on the wire?
there is no force on the wire as the magnetic flux density on both sides of the conductor is the same. So, there is no net force on the wire
Which are defected by electric and magnetic fields?
Any charged particle in motion especially not parallel to the magnetic field, current carrying conductor kept inclined or perpendicular to the magnetic field would get deflected. As far as electric field is concerned, even stationary charges would be displaced.
Why is it that 2 parallel wires carrying currents in opposite directions repel each other?
two wires carrying currents in opposite direction repel each other because the magnetic field between the wires is strong than on the sides of the wires.wires will move towards the weaker magnetic field from stronger field
Why do two parallel conductors carrying current in the same direction attract each other while two parallel conductors carrying current in the opposite directions repel each other?
because of their magnetic field lines
What does magnetoresistance do?
Magnetoresistance is an effect observed in (ferro)magnetic conductors. When applying an external magnetic field to the conductor, the resistance of the conductor changes. The resistance is minimized when the magnetic field is aligned parallel to the conductor, and maximized when the magnetic field is aligned perpendicular to the conductor. This effect was first observed by W. Thomson in 1856, and changes in resistance are usually below 1% at room temperature and higher at lower temperatures <5K For further reading: http://en.wikipedia.org/wiki/Magnetoresistance http://en.wikipedia.org/wiki/Electron_scattering
What is current in a circuit measure in?
If you refer to the unit, that is the ampere.AnswerCurrent is measured in amperes (symbol: A) which is defined in terms of its magnetic effect -i.e. the force between two, parallel, current-carrying conductors due to their magnetic fields.
What direction does a compass needle point if a current carrying wire is wrapped around it?
The compass needle aligns itself parallel to the direction of the lines of magnetic force where it happens to be. It does not 'point to a particular pole' for that is beyond the sensibility of a simple bar of metal. I repeat, it aligns itself parallel to the lines of magnetic force ...
Does a compass needle line up perpendicular or parallel to a magnetic field?
A compass needle will align itself with a magnetic field. It will want to lie along the magnetic field lines, or lie parallel to the lines of force of the magnetic field it is interacting with.
How does crosstalk reducein twisted pair wire?
Crosstalk occurs in twisted pair wire when a current or signal in one wire can produce an unwanted current or signal. If the two wires run parallel to each other the chance for crosstalk increases. Mutual inductance is a consequence of an alternating current (AC) in one conductor developing a fluctuating magnetic field which induces current flow in another close-coupled conductor. In computer networking or communication, this is termed cross-talk. The signal in the source wire is mirrored (at a lower strength) in the other. Where two conductors run parallel to one another for long lengths, the cross-talk signal is additive and can be considered as noise, where the other conductor is carrying its own signal.
What is a current in a circuit measured in?
ampsAnswerElectric current is measured by means of an ammeter. Electric current is expressed in amperes (symbol: A), which is defined in terms of the magnetic effect of an electric current -i.e. the force between two, parallel, current-carrying conductors.
