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JEE PHYSICS MCQ: CURRENT ELECTRICITY
1
Medium
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Understanding
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Assertion: In our houses when we start switching on different light buttons, main current goes on increasing.
Reason: Different connections in houses are in parallel. When we start switching on different light buttons, then net resistance of the circuit decreases. Therefore, main current increases.
Reason: Different connections in houses are in parallel. When we start switching on different light buttons, then net resistance of the circuit decreases. Therefore, main current increases.
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Correct option: A
If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
Option A (If both Assertion and Reason are true and Reason is the correct explanation of Assertion) is correct because parallel connections decrease net resistance, increasing current.
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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
