hello friends please help me...
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b=mew not n I
b is magnetic field ,n is number of turns
mewnot is equal to 4pie10^-7
B=15×4π×10^-7×I
induced emf =dphai/dt=15×4π×10^-7×change in current *(4-2)/time 1sec=answer
b is magnetic field ,n is number of turns
mewnot is equal to 4pie10^-7
B=15×4π×10^-7×I
induced emf =dphai/dt=15×4π×10^-7×change in current *(4-2)/time 1sec=answer
a1p1:
corrext or not
answer kya hai
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