Wiring Joints and Soldering MCQ with Answers

Wiring Joints and Soldering MCQ with Answers

1) Which is called valance electron in an atom?

Answer is:

No: of electron in the outer most orbit

Explanation:

.

2) How many electrons are in a copper atom?

Answer is:

29

Explanation:

18 electrons are there in the third shell of copper atom.

How many electrons are in a copper atom?

3) How many number of electrons will move in one second for one ampere current through the conductor?

Answer is:

6.24 X 10¹⁸

4) What is the property of direct current?

Answer is:

Magnitude and direction of current remains constant

5) Which effect is produced, if the current is passed through a conductor?

Answer is:

Thermal effect