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JEE PHYSICS MCQ: CURRENT ELECTRICITY
1
Medium
1 of 1
Application
+4 | -1
A generator develops an emf of and has a terminal voltage of when the armature current is . What is the resistance of the armature?
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Correct option: D
Option D () is correct because it is calculated using the formula relating emf, terminal voltage, armature current, and armature resistance.
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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