Available Answers

1. 1.

   What is responsible for the now of current through (i) a metallic conductor, (ii) an electrolyte?

2. 2.

   A conductor carries a current of 0.2 A. (a) Find the amount of charge that will pass through the cross section of Conductor in 30 s. (b) How many electrons will now in this time interval if Charge on one electron is 1.6 x 10^-19 C?

3. 3.

   You are given a resistance wire AB connected with a cell and a key as shown in Fig. 9.14. You are required to measure the current in the wire AB and potential difference across it. Name the instruments that you would use and draw a labelled diagram to show how are they connected. Also mark the direction of current in each component.

   

4. 4.

   Name one d.c. source and one a.c. source.

5. 5.

   Distinguish between d.c. and a.c.

6. 6.

   What is an electric Cell?