Physics - Magnetism Question with Solution | TestHub
PhysicsMagnetismMagnetic torque & energyMedium2 minPYQ_2013
PhysicsMediumsingle choice
One of the two small circular coils, (none of them having any self - inductance) is suspended with a V-shaped copper wire, with plane horizontal. The other coil is placed just below the first one with plane horizontal. Both the coils are connected in series with a dc supply. The coils are found to attract each other with a force. Which one of the following statements is incorrect?
Options:
Answer:
D
Solution:
As the force between the two coils is attractive hence currents in the coil must be in the same direction and the force, where and are the currents flowing through the coils.
Stream:JEESubject:PhysicsTopic:MagnetismSubtopic:Magnetic torque & energy
⏱ 2mℹ️ Source: PYQ_2013
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