CURRENT ELECTRICITY QUESTION BANK
Q.1. Define the
following terms
1.
Potentiometer
2.
Potential gradient
Q.2. State and
explain
1.
Kirchhoff’s current law/junction law
3.
Potentiometer principle
Q.3. What are the
uses of a potentiometer?
Q.4. Distinguish between a potentiometer and a voltmeter.
Q.5. What are the
disadvantages of a potentiometer?
Q.6. What are the advantages
of a potentiometer over voltmeter?
Q.7. Describe how a potentiometer is used to compare the emf of two cells by connecting the cells individually.
Q.8. Describe how a potentiometer is used to compare the emf of two cells by combination method.
Q.9. What is sum
method? Draw the symbolic diagram.
Q.10. What is
difference method? Draw the symbolic diagram.
Q.11. Describe with the help of a neat circuit diagram how you will determine the internal resistance of a cell by using a potentiometer. Derive the necessary formula.
Q.12. Obtain the
balancing condition in case of a Wheatstone’s network.
Q.13. Explain with neat circuit diagram, how you will determine the unknown resistance by using a meter-bridge.
Q.14. What is
potential gradient? How is it measured? Explain.
OR
Q.15. State and
explain principle of potentiometer.
Q.16. What are the
advantages of potentiometer over voltmeter?
Q.17. What are the
uses of potentiometer?
Q.18. What are the
applications of potentiometer?
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