Case: Read the passage and answer the following questions
A metal rod held in hand and rubbed with wool will not show any sign of being charged. However, if a metal rod with a wooden or plastic handle is rubbed without touching its metal part, it shows signs of charging. Suppose we connect one end of a copper wire to a neutral pith ball and the other end to a negatively charged plastic rod. We will find that the pith ball acquires a negative charge. If a similar experiment is repeated with a nylon thread or a rubber band, no transfer of charge will take place from the plastic rod to the pith ball.
Which among the following are Insulators?
Answer & explanation
Correct answer: option 4
Human bodies, animal bodies and metals are good conductors of electricity. None of them are insulators among the options.