Multiple Choice Questions
1. When the resistance of the conductor increases then the current will
A. increase
B. decrease
C. remain same
D. becomes double
What will happen to current passing through a resistance, if potential difference across it is
doubled and the resistance is halved
A. remains unchanged
B. becomes double C. becomes half D. becomes four times
3. Straight line is obtained on drawing the graph of current against potential difference.
This proves ......law.
A. Farady's Law B.Ohm's Law C. Fleming's left hand rule D. Maxwell's Law
4. There are 20 divisions in the range 0 to 0.5 V in a Voltmeter, Therefore least count
of the Voltmeter is ......
A.0.020
B. 0.025
C. 0.050
D. 0.250
5. If the resistance in the circuit is increased four times by keeping the potential difference
same, the current in the circuit is
A. remains same B. four times C. one fourth D. half
Answers
Answer:
1.When the resistance of the conductor increases then the current will A. increase
2.What will happen to current passing through a resistance, if potential difference across it is
doubled and the resistance is halved becomes half.
3.Straight line is obtained on drawing the graph of current against potential difference.
This proves ......law. B.Ohm's Law
4.There are 20 divisions in the range 0 to 0.5 V in a Voltmeter, Therefore least count
of the Voltmeter is B. 0.025.
5.If the resistance in the circuit is increased four times by keeping the potential difference
same, the current in the circuit is C. one fourth.
Explanation:
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