Question

Draw the pattern of magnetic field produced by a current-carrying circular loop and name the factors on which the magnitude of the magnetic field due to a current-carrying circular coil depends.

Accepted Answer

1. **Factors affecting magnitude of magnetic field ($B$):** - Directly proportional to the current ($I$) flowing through the coil ($B \propto I$). - Inversely proportional to the radius ($r$) of the circular loop ($B \propto \frac{1}{r}$). - Directly proportional to the number of turns ($N$) in the coil ($B \propto N$). 2. **Diagram:** Concentric circles drawn around the wire segments of the loop, becoming straight parallel lines at the centre of the loop.

Magnetic field pattern of circular loop

Explanation

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