Current Electricity Charging Discharging Of Capacitors Question 523

Question: If two bulbs of wattage 25 and 30, each rated at 220 volts, are connected in series with a 440 volt supply, which bulb will fuse

[MP PET 2000]

Options:

A) 25 W bulb

B) 30 W bulb

C) Neither of them

D) Both of them

Show Answer

Answer:

Correct Answer: A

Solution:

In series, $ P _{Consumed}\propto \frac{1}{P _{Rated}}\propto V _{Applied} $ i.e. more voltage appears on smaller wattage bulb, so 25 W bulb will fuse