$A$ current-carrying wire produces:

$A$ square coil moves in a plane with uniform velocity $v$ parallel to its sides. $A$ magnetic field $B$ points perpendicular and into the loop. What is the induced current in the coil?

The phenomenon of electromagnetic induction is:

The device used for producing electric current is called a

Describe the working of an $AC$ generator with the help of a labelled circuit diagram. What changes must be made in the arrangement to convert it to a $DC$ generator?

Under what conditions is a permanent magnet obtained if a current-carrying solenoid is used? Support your answer with the help of a labelled circuit diagram.