MCQOPTIONS
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MCQOPTIONS
| 1. |
A current of 0.1 A circulates around a coil of 100 turns and having a radius equal to 5 cm. The magnetic field set up at the centre of the coil is \[({{\mu }_{0}}=4\pi \times {{10}^{-7}}\,weber/ampere-metre)\] [MP PMT 1993] |
| A. | \[4\pi \times {{10}^{-5}}\,tesla\] |
| B. | \[8\pi \times {{10}^{-5}}\,tesla\] |
| C. | \[4\times {{10}^{-5}}\,tesla\] |
| D. | \[2\times {{10}^{-5}}\,tesla\] |
| Answer» B. \[8\pi \times {{10}^{-5}}\,tesla\] | |