In an experiment on studying the dependence of the current I flowing through a given resistor on the potential difference V applied across it, a student has to change the value of the current. For doing this, he should change the
A. number of cells used
B. resistor itself
C. ammeter used in the circuit
D. Voltmeter used in the circuit
Answer:A
In an experiment on studying the dependence of the current I flowing through a given resistor on the potential difference V applied across it, a student has to change the value of the current. For doing this, he should change the
A. number of cells used B. resistor itself C. ammeter used in the circuit D. Voltmeter used in the circuit