Question

Electric bulb 50 w-100 v glowing at full power are to be used in parallel with battery 120 v, 10 . Maximum number of bulbs that can be connected so that they glow in full power is

Answer 1

Answer:

4 bulbs

Explanation:

Resistance of each lamp

<br>

, current through each lamp

<br> If there n lamps in parallel to a battery of

current each lamp glown to fall power then total current in n cell

<br> Total resistance of circuit

<br> As, current

<br> So

<br> On solving we get ,