1.

A current loop, having two circular arcs joined by two radial lines is shown in the figure. It carries a current of 10 A. The magnetic field at point O will be close to:

A. 1.0 × 10-7 T
B. 1.5 × 10-7 T
C. 1.5 × 10-5 T
D. 1.0 × 10-5 T
Answer» E.


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