(i)Two circular coils P and Q are kept close to each other, of which coil P carries a
current. Will some current be induced in coil Q if coil Pis moved towards Q ? Give
a reason for your answer and name the phenomenon involved.
(ii)
What happens, if coil P is moved away from Q?
(iii)State few methods of
inducing current in a coil.
Answers
Answer:When coil P is moved towards Q, current will be induced in coil Q. This is because on moving P the magnetic field associated with Q increases and so a current is induced. The phenomenon is electromagnetic induction.
If P is moved away from Q, the field associated with Q will decrease and a current will be induced but in the opposite direction.
Current can be induced in a coil by (a) moving a magnet towards or away from the coil (b) moving a coil towards or away from a magnet © rotating a coil within a magnetic field
Answer:
The correct answer of this question is the name of phenomena is Electromagnetic induction .
Explanation:
Given - Two circular coils P and Q which is close to each other, of which coil P.
To Find - Give a reason for your answer and name the phenomenon involved.
Current is induced in coil Q when coil P is moved towards Q. Because shifting P increases the magnetic field associated with Q, a current is induced. Electromagnetic induction is the phenomena.
When P is shifted away from Q, the field associated with Q decreases and an opposite-direction current is induced.
Current can be induced in a coil by moving a magnet towards or away from the coil (a) or by moving a coil towards or away from a magnet (b). spinning a coil in the presence of a magnetic field.
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