If fuse of $250 m A, 500 m A, 1 A, 5 A$ and $10 A$ were available, which one would be the most suitable for protecting an amplifier rated at $240 V, 180 W$ ?

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Solution

The fuse work to stop the current flow in an appliance so that it can be prevented from overloading.

$P = V \times I$

We have given two powers

$I = \frac{180}{240}$

Current that is flowing through it is $750 m A$

Hence, the fuse of $1 A$ is suitable.

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