MCQOPTIONS
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| 1. |
A wire in the form of a circular loop of one turn carrying a current produces a magnetic field B at the centre. If the same wire is looped into a coil of two turns and carries the same current, the new value of magnetic induction at the centre is [CBSE 2002; KCET 2003] |
| A. | \[5B\] |
| B. | \[3B\] |
| C. | \[2B\] |
| D. | \[4B\] |
| Answer» E. | |