MAGNETISM AND CAPACITOR - Quiz

1) Which is dia magnetic substance?

Iron and nickel Aluminium Graphite Copper

2) What is the metal composition of Permalloy?

Iron and nickel Iron and copper Iron and aluminium Iron and chromium

3) What is the unit of permeability?

Weber/metre No unit (mere number) Ampere turns/web Ampere turns/metre²

4) Which factor depends on the permeability of the material?

Length Flux density Field intensity Magneto motive force

5) Which rule is used to find the direction of the self induced emf in a coil?

Clock rule Lenz law Ampere rule Corkscrew rule