If a 100 w light bulb and a 75 w light bulb operate from 220 v the bulb has a greater current in it1).75 w2). 100 w

The correct answer is 100 W.

Explanation:

The expression for the power in terms of voltage and the current is as follows;

P=VI                                                                    .......... (1)

Here, P is the power, V is the voltage and I is the current.

It is given in the problem that a 100 W light bulb and a 75 W light bulb operate from 220 V .

Calculate the current for light bulb, 100 W by rearranging the above expression.

Put P= 100 W and V= 220 V.

I= 0.45 A

Calculate the current for light bulb, 75 W by expression (1).

Put P= 75 W and V= 220 V.

I= 0.34 A

Therefore, 100 W light bulb has a greater current in it

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it