If fuses of 250 m A, 500 m A, 1 A, 5 A and 10 A were available, which – InterviewSolution

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1.

If fuses 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 ?

Answer»

P = VI

I = P/V = 180/240 = 0.75A

The fuse wire should be such that it is able to withstand only a little more current than 0.75A. So the fuse of 1A is the most suitable.

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