#### Question

If fuse of 250 mA, 500 mA, 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?

#### Solution

We will first calculate the current.

Here,

P = 180 W

V = 240 V

Now, power, P = `VxxI`

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

So, a fuse of 1 A will be most suitable.

Is there an error in this question or solution?

Solution If Fuse of 250 Ma, 500 Ma, 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? Concept: Magnetic Effect of a Current.