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JEE PHYSICS MCQ: CURRENT ELECTRICITY
1
Medium
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Application
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When an unknown resistance and a resistance are connected in the left and right gaps of a meter bridge, the balance point is obtained at . If resistance is connected in parallel to resistance in right gap, the balance point is
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Correct option: B
Increases by
Option B (Increases by ) is correct because the balance point shifts due to the change in the resistance ratio after connecting the parallel resistance.
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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