A magnet is plunged into and out of a coil of wire 2 times per second. This induces 5 volts. If the number of coils in the wire is doubled from 100 to 200, and the original rate 2 times per second is kept the same, what will be the new voltage induced.
3 answers
The voltage will double, since it is proportional to the number of coil windings.
305
no.of turns is directly proportional to v/t
therefore n1/n2=v1/v2*t2/t1
100/200=5/v2*2/2
v2=10
therefore n1/n2=v1/v2*t2/t1
100/200=5/v2*2/2
v2=10
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