CUET Preparation Today
A circular loop of conducting wire is placed near a current carrying wire as shown in the figure. Both are in the same plane. If the current flowing through the wire is suddenly increased.
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Loop will have induced current in the anti-clockwise direction Loop will have induced current in the clockwise direction There will be no induced current in the loop the loop will be attracted by the wire |
Loop will have induced current in the clockwise direction |
The correct answer is Option (2) → Loop will have induced current in the clockwise direction The magnetic field due to the straight current-carrying wire at the location of the circular loop is directed out of the plane (by the right-hand rule). When the current in the wire is increased, the magnetic flux through the loop (out of the plane) increases. According to Lenz’s law, the induced current will oppose this change by producing a magnetic field into the plane. To produce a field into the plane, the induced current must flow clockwise.
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