Q. If an electric current is passed through a nerve of a man, then man
A) Begins to laugh
B) Begins to weep
C) Is excited
D) Becomes insensitive to pain
Explanation
(c) Human body, though has a large resistance of the order, of $K\Omega(say\ 10k\Omega),$ is very sensitive to minute currents even as low as a few $mA.$ Electrons, excites and disorders the nervous system of the body and hence one fails to control the activity of the body
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.