Two long parallel wires are separated by a distance of 12cm carry electric currents of 2A and 4A. The distance of null point from the conductor carrying larger current when currents are flowing in the opposite direction is
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a
4cm
b
16 cm
c
12 cm
d
24 cm
answer is D.
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Detailed Solution
Currents are in opposite direction location of null point from larger current i1=2A; i2=4A; r=12cm x=ri1i2−1=1224−1=24cm
Two long parallel wires are separated by a distance of 12cm carry electric currents of 2A and 4A. The distance of null point from the conductor carrying larger current when currents are flowing in the opposite direction is