18.
A permanent magnet

19.
Two infinitely long parallel conductors in vacuum any separated 1 metre between centers >then a current of 1 ampere flows the. uk each conductor, produce on each other a force of

20.
A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will

Read More Section(Magnetism And Electromagnetism)

Each Section contains maximum 70 questions. To get more questions visit other sections.