Class 10th Science Electricity MCQ Test 1

Electricity MCQ Test-1

Name: Class:

1. In a metal, the path of motion of a free electron is

straight line random circular parabolic

2. A current of 1A is drawn by filament of an electric bulb. Number of electrons passing through the cross section of the filament in 16 seconds would be roughly [NCERT Exemplar]

10²⁰ 10¹⁶ 10¹⁸ 10²³

3. A constant current is passed through a uniform conductor. At any given segment of the conductor there is

a net negative charge a net positive charge no net charge of any kind a net charge proportional to the volume of segment

4. If 5 coulombs of charge flows through a conductor in 2 seconds, then the number of electrons flowing through a conductor in one second approximately is [NTSE]

30×10¹⁸ 15.6×10¹⁸ 6×10¹⁸ 12×10¹⁸

5. That potential at a point is 20 V. The work done in bringing a charge of 0.5 C from infinity to this point will be

20 J 5 J 40 J 10 J