Two-Marks-Current electricity

 

Two Marks Each

1.  State the following laws

            I.        Kirchhoff’s Current Law

         II.        Kirchhoff’s Voltage Law

       III.        Potentiometer principle

2.  Define the following terms

a.  Potentiometer

b.  Potential gradient

3.  What are the advantages of potentiometer over voltmeter?

4.  Distinguish between voltmeter and ammeter

5.  What purpose the galvanometer is used for?

6.  Draw the internal structure of galvanometer.

7.  Write the balancing condition of Wheatstone bridge.

8.  Write any three conditions to convert a moving coil galvanometer into ammeter.

9.  Write any three conditions to convert a moving coil galvanometer into voltmeter.

10.     What are the uses of shunt?

11.     Write any three applications of potentiometer.

12.     What is sum method of potentiometer to compare the emfs of cell?

13.     What is the difference method of potentiometer to compare the emfs of cell?

14.     Draw the circuit diagram of Wheatstone bridge.