A circular coil of average radius 6 cm has 20 turns. A current 1.0 A is set up through it. Find the magnetic induction at
(i) The centre of the coil

Explanation

To find the magnetic induction (magnetic field) at the center of a circular coil, we can use the formula:

\[ B = \frac{n \cdot \mu_0 \cdot I}{2R} \]

Where:
- \(B\) is the magnetic induction at the center of the coil.
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