MCQOPTIONS
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| 1. |
Magnetic field at a point d distance away from long wire due to electric current i in it is ____________ |
| A. | µ0i/2r |
| B. | µ0i/r |
| C. | µ0i/2πr |
| D. | µ0i/πr |
| Answer» D. µ0i/πr | |