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Q.66In previous problem if I is reversed in direction, thenVB-V, equals(A)5V(C) 15 V(B) 10 V(D) 20 vQ.67On making a coil of copper wire of length e and coilradius r, the value of self inductance is obtained as L.If the coil of same wire, but of coil radius r/2, is made,the value of self inductance will be-(A)2L(B)L(D) L/2(C)4L

Answer»

66)20V. [VB+5+15+5=VA]



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