MCQOPTIONS
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MCQOPTIONS
| 1. |
When a certain length of wire is turned into one circular loop, the magnetic induction at the centre of coil due to some current flowing is \[{{B}_{1}}\] If the same wire is turned into three loops to make a circular coil, the magnetic induction at the center of this coil for the same current will be [MP PMT 2002] |
| A. | \[{{B}_{1}}\] |
| B. | \[9\,{{B}_{1}}\] |
| C. | \[3\,{{B}_{1}}\] |
| D. | \[27\,{{B}_{1}}\] |
| Answer» C. \[3\,{{B}_{1}}\] | |