7. Fuse and current rating

Question:

2 m.

Give a very short answer to the question given below.

You are given 2 fuse wires A and B with current ratings \(2\ A\) and \(8\ A\) respectively. Justify with reason which of the two would you use with a \(1200\ W\), \(225\ V\) room heater?

The formula to calculate the power is,

\(P\ =\ I^2 \times V\)
\(P\ =\ \frac{I}{V}\)
\(P\ =\ \frac{V}{I}\)
\(P\ =\ V \times I\)

So, the current is, ______ \(A\)

\(1\)
\(1.5\)
5.33
\(3.5\)

We will be using

fuse B
fuse A

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