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Ohm's Law

When a steady...

Question

When a steady current passes through a cylindrical conductor, is there an electric field inside the conductor?

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Solution

Under electrostatic conditions (when no current flows), $E = 0$ . When current is non-zero, then electric field is also non-zero.

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Similar questions

Q. A steady electric current is flowing through a cylindrical conductor.

Q. A steady electric current is flowing through a cylindrical conductor.
(a) The electric field at the axis of the conductor is zero.
(b) The magnetic field at the axis of the conductor is zero.
(c) The electric field in the vicinity of the conductor is zero.
(d) The magnetic field in the vicinity of the conductor is zero.

Q. Assertion :A steady current is flowing in a conductor hence there is an electric field within the conductor and Reason: In case of steady current, there can be no accumulation of charges, so no electric field can be established.

Q. Assertion :When a conductor is placed in an external electrostatic field, the net electric field inside the conductor becomes zero after a small instant of time. Reason: It is not possible to set up an electric field inside a conductor

Q. Assertion :A current flows in a conductor only when there is an electric field within the conductor. Reason: The drift velocity of electron in presence of electric field decreases.

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