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1. |
Two straight parallel wires, both carrying 10 ampere in the same direction attract each other with a force of\[1\times {{10}^{-3}}N\]. If both currents are doubled, the force of attraction will be [MP PET 1994] |
A. | \[1\times {{10}^{-3}}\,N\] |
B. | \[2\times {{10}^{-3}}\,N\] |
C. | Isogonic line |
D. | \[0.25\times {{10}^{-3}}\,N\] |
Answer» D. \[0.25\times {{10}^{-3}}\,N\] | |