Question

Certain galvanometers have a fixed core made of nonmagnetic metallic material, when the coil oscillates, ...A... generated in the core ...B... the motion and bring the coil to rest ...C...

Here, A, B and C refer to ______.

Options

• induced emf, support, long time
• induced current, support, long time
• mechanical energy, oppose, long time
• eddy currents, oppose, quickly 

Answer 1

Certain galvanometers have a fixed core made of nonmagnetic metallic material, when the coil oscillates, ...A... generated in the core ...B... the motion and bring the coil to rest ...C...

Here, A, B and C refer to eddy currents, oppose, quickly.