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JEE PHYSICS MCQ: CURRENT ELECTRICITY
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Medium
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Analyzing
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Assertion: Two electric bulbs of 50 and 100 W are given. When connected in series 50 W bulbs glows more but when connected parallel 100 W bulb glows more.
Reason: 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.
Reason: 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.
View answer and explanation
Correct option: A
If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
Option A is correct. The assertion and reason are both true, and the reason correctly explains why the 50W bulb glows brighter in series and the 100W bulb glows brighter in parallel.
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Statement-1: If a resistor is connected to a battery the current decreases when the temperature increases.
Statement-2: For most of the resistors, resistance increases with increase in temperature. The reciprocal of resistance is Corresponding to the resistance , which is order of colour coding on carbon resistors? In a meter bridge, the gaps are closed by resistance 2 and 3 ohms. The value of shunt to be added to 3 ohm resistor to shift the balancing point by is
Statement-2: For most of the resistors, resistance increases with increase in temperature. The reciprocal of resistance is Corresponding to the resistance , which is order of colour coding on carbon resistors? In a meter bridge, the gaps are closed by resistance 2 and 3 ohms. The value of shunt to be added to 3 ohm resistor to shift the balancing point by is
