A circuit with a resistance of $8 Omega$ has a fuse with a capacity of $3 A$ . Can a voltage of $5 V$ be applied to the circuit without blowing the fuse?

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Answer 1 · 2016-04-28T00:24:31

Yes it can.

We can use Ohm`s Law to find the current $I$ :
$V=RI$
so:
$I=V/R=5/8=0.625A$
that is way below the fuse maximum capacity.

A circuit with a resistance of 8 Omega8 Omega has a fuse with a capacity of 3 A3 A. Can a voltage of 5 V5 V be applied to the circuit without blowing the fuse?