Two straight parallel wires, both carrying current lOA in the same direction attract each other with a force of 1 x 103 N. If both currents are doubled, the force of attraction will be
A. 1 × 10-3N
B. 2 × 10-3N
C. 4 × 10-3N
D. 0.25 × 10-3N
Answer:C
Two straight parallel wires, both carrying current lOA in the same direction attract each other with a force of 1 x 103 N. If both currents are doubled, the force of attraction will be
A. 1 × 10-3N B. 2 × 10-3N C. 4 × 10-3N D. 0.25 × 10-3N