Q2 of 39 Page 237

Name some sources of direct current.

The examples of sources of direct current:

a) Dry cell


b) Dry cell battery


c) Car battery


d) Solar cell and


e) D.C. generator.


More from this chapter

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1

State different ways to induce current in a coil.

 1

State the principle of an electric generator.

 3

Which sources produce alternating current?

 4

Choose the correct option:

A rectangular coil of copper wires is rotated in a magnetic field. The direction of the induced cum changes once in each:


(a) two revolutions


(b) one revolution


(c) half revolution


(d) one-fourth revolution