Question

Assertion: When charges are shared between any two bodies no charge is really lost some loss of energy does occur.
Reason: Some energy disappears in the form of heat, sparking etc.
A. Both reason and assertion are correct and reason is the correct explanation for assertion.
B. Both assertion and reason are correct but reason is not the correct explanation for assertion.
C. Assertion is correct but reason is false.
D. Assertion is false and reason is correct.

Answer 1

Hint:-There are two important properties of charged conductors:
1. How charge is shared is between two electrically connected bodies, until electrostatic equilibrium is reached .
2. The surplus charge and electric field strength is arranged on the curved conducting surface at electrostatic equilibrium.
Keeping in mind the above properties we will come to the conclusion of the problem.

Complete step-by-step solution:
Two neutral spheres are placed and are connected with a conductor. Now, on one of the two spheres, charge is placed and left on rest .By the time we observe that the second conductor also got charged till the time electrostatic equilibrium is reached (both spheres have equal amount of charge). This means that no charge is lost but the charge is shared between the two spheres through the connecting conductor .Therefore, assertion is true.
According to Coulomb’s law , when two charges are at a finite distance and are point charges then they exert an electrostatic force on each other .The similar thing happened with the charges of the sphere as well ,force also being exerted. In this exertion of force some energy might get lost as the charges showed movement .Secondly, charges may be positive or negative when positive and negative charges attract each other some spark may also take place , which is resulted in the form of heat.this means that our reason is also true.
Thus, option A is correct.

Note:-
In conductors, the conduction takes place when electrons from the outermost shell of the main atom detach itself to move freely throughout the atom then these freely moving electrons which are negatively charged move in a haphazard fashion and conduction takes [place . Insulators have very few freely moving electrons therefore, no conduction takes place in insulators.