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ah4p
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A d.c circuit consists of a switch, lamp and inductor.
The inductor is replaced with an inductor with twice the number of turns in the coil of wire, nothing else about it is changed.
State the effect on
A) maximum current
B) the time to reach max current
I thought increasing the turns would increase the current
and also increase the time taken since the back emf would also be greater
but the answer is
max current decreases
and time to reach it increases
can anyone explain why?
thanks v much in advance
The inductor is replaced with an inductor with twice the number of turns in the coil of wire, nothing else about it is changed.
State the effect on
A) maximum current
B) the time to reach max current
I thought increasing the turns would increase the current
and also increase the time taken since the back emf would also be greater
but the answer is
max current decreases
and time to reach it increases
can anyone explain why?
thanks v much in advance