Monday, November 19, 2012

Comparison of Charge And Mass

Electric charge on the body may be positive or negative.
Mass of a body is a positive quantity
Charge carried by the body does not depend upon the velocity.
Charge carried by the body depends upon the velocity.
Charge is quantized
Mass is not quantized yet.
Electric charge is always conserved
Mass can be changed into energy, it is not conserved.
Force may be attractive or repulsive, according to the charge 
Gravitational force between two masses is always attractive.

Some of these questions which may be asked in your Board Examination 2012-2013

Q1: When a plastic comb is passed through dry hair, what type of charge is acquire by comb?

Q2: Does motion of a body affect its charge

What is the origin of frictional forces

Answer these questions in comment box and help your friends

1 comment:

  1. Mass carried by
    the body depends
    upon the velocity....mass changes with velocity of body