Q42 of 76 Page 271

Why does an electric bulb glow when a current passes through it?

The electric bulb glows because it completes the circuit when put in the conducting solution and the conducting solution helps to glow the bulb.


More from this chapter

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42

Name three types of substances in which an electric current can produce a chemical effect.

 42

State some of the characteristics of chemical changes brought about by the chemical effect of electric current.

 43

What is meant by electroplating? What is the purpose of electroplating?

 43

Which properties of chromium metal make it suitable for electroplating it on car bumpers, bath taps and bicycle handlebars, etc., made of iron?