## Class 12 Physics : Electrostatics Revision Test

Max marks:50 Time:2hrs

1. A glass rod rubbed with silk acquires a charge of 6×10-12 C. Calculate the number of electrons it has gained

## Electric Current and flow of electrons

I have read that the FLOW OF ELECTRONS is called electricity. I wanna know that what is meant by flow of electrons? Pleaz answer me….

Electric current is the flow of charges.

## What are the similarities and differences in magnetic and electric field?

Similarities and differences in magnetic and electric field (Dilpreet posted this question) Similarities Differences  Both electric and magnetic field are conservative forcesBoth obey inverse square law Both are non contact forces (Forces can be exert...

## Solution to HC Verma Problem

“Referring to HC Verma Part 2, chapter 29, Electric field and potential, Q 69 I think that Force is inversely proportional to square of the distance between the charged particles, so acceleration is not constant and hence v*v  =  u*u  + 2*a*s   is not valid in this case. [...]

## Electric field inside a dielectric

Why does the electric field inside a dielectric decrease when it is placed in an external electric field?