Three long, straight and parallel wires carrying currents are arranged – McqOptions

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1.	Three long, straight and parallel wires carrying currents are arranged as shown in the figure. The wire C which carries a current of 5.0 amp is so placed that it experiences no force. The distance of wire C from wire D is then [AMU 1995]
A.	9 cm
B.	7 cm
C.	5 cm
D.	3 cm
Answer» B. 7 cm

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