By placing an iron-like metal inside the solenoid,its magnetic field becomes $......$

Draw a diagram to show how a magnetic needle deflects when it is placed above or below a straight conductor carrying current,depending on the direction of the current in the conductor.

By increasing the number of turns $3$ times in a toroidal solenoid,the magnetic field:

One should always use rubber gloves and rubber shoes when dealing with electricity.

$A$ magnet is moved towards a coil,an $emf$ and charge are induced in it. If the magnet is moved slowly,how will the new $emf$ and charge be affected?

An electric generator is a device that converts electrical energy into mechanical energy.