Question

Why AC shocks are more dangerous than DC shock
(A) AC current magnitude is huge
(B) DC current magnitude is small
(C) AC reverses direction periodically causing an attractive force to the body on change of cycles
(D) DC can’t find a complete electrical path

Answer 1

Hint: To answer such questions, we must thoroughly understand the nature of AC and DC. We must know that AC has alternating polarities while DC has fixed polarities. With this approach, we can easily answer the given question.

Complete step-by step answer:
When man comes in contact with a live wire, he generates the same change in the hand. In DC, the force is repulsive and we know that the person also perceives this. So, he is quickly able to withdraw the land.
In AC, due to continuously changing polarities, force becomes attractive and the neurons give false information to the brain. So, the hand gets stuck in case of AC shocks and may receive a severe shock.

Hence, the correct answer is Option C.

Note: We must not confuse the effects of AC with DC and we must always remember that ‘A’ in AC can also stand for attraction which will help us remember that AC attracts a body and the body gets stuck to the source.