Question

The largest number of 100W bulbs connected
I in parallel which can safely be run from a 230v.
supply with a 5A fuse is
a.2
b.5
c.11
d.12​

Answer 1

Answer:

The correct answer of this question is option (b).

Thank-you

Answer 2

Answer: C.11

Explanation: Well, my fella's. We use the formula P=IV where we are looking for I which is hhow many amperes will 1 lamp take. So, P=100W, V=230, and I=x.

I=P/V

I=100/230

I=0.43

Now we have 5A which is used for all the lamps. So, what we have to do is simple. I for 1 lamp divided by I for all lamps.

5/0.43=11.6

So your answer is option c.11.