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1. |
The value of magnetic field that will cause a max force of 7 x 10-3N on a 20 cm wire carrying current of 10A will be |
A. | 3.5 x 10-3T |
B. | 1.5 x 10-3T |
C. | 4.5 x 10-3T |
D. | 2.5 x 10-3T |
Answer» B. 1.5 x 10-3T | |