Question

The sum of all electromagnetic forces between different particles of a system of charged particles is zero
(a) only if all the particles are positively charged
(b) only if all the particles are negatively charged
(c) only if half the particles are positively charged and half are negatively charged
(d) irrespective of the signs of the charges.

Answer 1

(c) only if half the particles are positively charged and half are negatively charged

Answer 2

The sum of all electromagnetic forces between different particles of a system of charged particles is zero : is irrespective of the signs of the charges.

Explanation:

• Newton's third law of motion are going to be applied. in step with the Newton's third law of motion, ''To each action there's invariably AN equals and opposite reaction''.

• We know, Between any 2 or additional particles that are either of a similar charge or of the various charges, force invariably happens in Action - Reaction combine and are always of the equals magnitude however opposite in directions.
• Thus, add of the magnetism forces between totally different system of the particles of charged particles is usually zero. It doesn't depends upon the costs.