The sum of all electromagnetic forces between different particles of a system of charged particles is zero.

Sugar is a solid; the forces of attraction between the particles of sugar are strong. Water is a liquid; the forces of attraction here are weaker than sugar. Oxygen is...

(c) Oxygen, water, sugar 

charged balloon is repelled by another charged balloon because both carry same charges and we know same charges repel each other whereas an uncharged balloon is attracted by charged balloon...

Sir /Madam, My  daughter chose the last one "irrespective of the signs of the charges"  which is option d  but her school teacher is saying option (C) . can some one...

(a) the electric field must be zero (d) the magnetic field may or may not be zero. Explanation: Force on  charged particle in an electric eld, F = q E   ------(1)  Force on charged...

(d) E>G>N. Explanation: Between two electrons at a given separation, the strongest acting force is the electromagnetic force. The gravitational force is the weakest force between any two particles. There is no...

(d) irrespective of the signs of the charges. Explanation: The sum of all electromagnetic forces between different particles of a system of charged particles is zero irrespective of the sign of the charges, because...

(b) must not accelerate  (c) may move Explanation:  If there is no/zero resultant force acting on a system, there will be no acceleration. Hence (b), not (d).  If it is already moving with a...

(a) noble gases.  (b) between HCl molecules.  (c) Between water molecules or HF molecules.  (d)Between NO3 - and water molecules