Question

Electricity at rest is called:
A) Dynamic electricity.
B) Static electricity.
C) Both (A) and (B).
D) None of these.

Answer 1

Hint: Electricity is defined as the energy which is caused due to the motion of electrons from one place to another place. If electrons are at rest then the energy which is at rest then the study of this field is known as electrostatics.

Complete step by step solution:
The study of electricity at rest is known as static electricity. It is defined as the field of electricity which deals with the current at rest. The static current can also be known as electrostatics. If a charge is kept at rest then it forms a field around it known as electric field and if the charges are in motion then the different field of study which is known as dynamic or electrodynamics. The motion of electrons only makes the electric current to flow in the circuit.

The correct answer is option B.

Additional information:
If a positively charged and negatively charged object both are made in contact then discharge takes place with a huge flash and the charges become neutral.
The positive and negative charges attract to each other whereas the positive-positive and negative-negative charges repel each other.

Note:
If the charges are in motion then the study of these types of fields is known as electrodynamics and if the study of charges in rest is considered then this field is known as electrostatics. The electric field is a concept developed due to a charge in rest.