BASIC ELECTRICAL PRACTICE - Quiz

1) How many electrons are there in the third cell of the copper atom?

8 13 18 29

2) Which is the semiconductor material?

Eureka Ebonite Manganin Germanium

3) What is the indication of neon polarity indicator used for checking A.C. supply?

Both electrodes will glow Only one electrode will glow Both electrodes will be flickering One electrode will glow and another will be flickering

4) Calculate the electrical energy in unit consumed by 500W lamp for 5 hours.

0.5 unit 1.0 unit 1.5 unit 2.5 unit

5) What is the value of hot resistance of a bulb rated as 100W/250V?

31.25 ohm 62.50 ohm 312.50 ohm 625.00 ohm