Question 16 : The advantage of potentiometer over voltmeter in measurements of emf is that
the potentiometer wire is assumed to be uniform
the temperatue of the wire must remain constant
faults may arise due to breaks or wrong connections in the circuit
it does not draw current from the circuit under test
the potentiometer wire is assumed to be uniform
the temperatue of the wire must remain constant
faults may arise due to breaks or wrong connections in the circuit
it does not draw current from the circuit under test
Question 14 : The image of an object which is between the concave mirror's reflecting surface and its principal focus is?
ANSWER
it does not draw current from the circuit under test
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