MCQOPTIONS
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MCQOPTIONS
| 1. |
A uniform wire is bent in the form of a circle of radius R. A current I enters at A and leaves at C as shown in the figure : If the length ABC is half of the length ADC, the magnetic field at the centre O will be [MP PMT 1997] |
| A. | Zero |
| B. | \[\frac{{{\mu }_{0}}I}{2R}\] |
| C. | \[\frac{{{\mu }_{0}}I}{4R}\] |
| D. | \[\frac{{{\mu }_{0}}I}{6R}\] |
| Answer» B. \[\frac{{{\mu }_{0}}I}{2R}\] | |