Statement $$1$$: Two electric bulbs of $$50$$ W and $$100$$ W are given. When connected in series, $$50$$ w bulb glows more but when connected in parallel, $$100$$ W bulb glows more. Statement $$2$$: In series combination, power is directly proportional to the resistance of circuit. But in parallel combination, power is inversely proportional to the resistance of the circuit.

Question

Statement $$1$$: Two electric bulbs of $$50$$ W and $$100$$ W are given. When connected in series, $$50$$ w bulb glows more but when connected in parallel, $$100$$ W bulb glows more. Statement $$2$$: In series combination, power is directly proportional to the resistance of circuit. But in parallel combination, power is inversely proportional to the resistance of the circuit.

Infinity Learn · Accepted Answer

Resistance of $$50$$ W bulb is two times the resistance of $$100$$ W bulb. When bulbs are connected in series, $$50$$ W bulb will glow more as P $$=$$ $$i2R$$ (current$$ remains same in $$series). In parallel, the $$100$$ W bulb will glow more as P $$=$$ $$V2/R(potential$$ difference remain same in $$parallel)$$.

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