ElectroMagnetic InductionHard
Question
0.36 mH
Two circular coils P & Q are fixed coaxially & carry currents I1 and I2 respectively
Two circular coils P & Q are fixed coaxially & carry currents I1 and I2 respectively
Options
A.If I2 = 0 & P moves towards Q, a current in the same direction as I1 is induced in Q
B.If I1 = 0 & Q moves towards P, a current in the opp. direction to that of I2 is induced in P
C.when I1 # 0 and I2 # 0 are in the same direction then the two coils tend to move apart.
D.If I2 = 0 and P moves towards Q, then according to Lenz law a current in opposite as I1 is induced in Q. Same as I1 = 0 and Q moves towards P when I1 0, I2 0 are in opposite direction then the coils repels each others.
Solution
If I2 = 0 and P moves towards Q, then according to Lenz law a current in opposite as I1 is induced in Q. Same as I1 = 0 and Q moves towards P when I1 0, I2 0 are in opposite direction then the coils repels each others.
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