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JEE PHYSICS MCQ: CURRENT ELECTRICITY
1
Medium
1 of 1
Understanding
+4 | -1
Assertion: When the length of a conductor is doubled; its resistance will also get doubled.
Reason: Resistance is directly proportional to the length of a conductor.
Reason: Resistance is directly proportional to the length of a conductor.
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 because both the assertion and the reason are true, and the reason correctly explains why the resistance doubles when the length doubles.
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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
