Explain the meaning of the term electromagnetic induction. On what factors do theinduced currentproduced in a circuit depend ? Name and state the rule used to find the directionof induced current . State one practical application of thisphenomenon in everyday life.

Explain the meaning of the term electromagnetic induction. On what fac

1.	Explain the meaning of the term electromagnetic induction. On what factors do theinduced currentproduced in a circuit depend ? Name and state the rule used to find the directionof induced current . State one practical application of thisphenomenon in everyday life.
Answer» Solution :i] Electromagnetic induction produces an induced emf and HENCE an induced CURRENT in a closed circuit by changingthe magnetic field. ii] The VALUE of current induced in a circuitdepends on the rate of change of magnetic field andstrength of the magnetic field. iii] Fleming.sright HAND rule is used to find the direction on induced current. This rule states thatif thethumb, fore finger and middle finger of the right hand are stretched to be perpendicularto each otheras shown in the figure, and if the thumb represents thedirection of the motion of conductor, fore-finger representsdirection of the magnetic field, then the middle finger represents the direction of the induced current. iv] Electric GENERATOR is one practical application of electromagnetic induction.