Suppose a rod is given a negative charge by rubbing it with wool. Whic

| Suppose a rod is given a negative charge by rubbing it with wool. Which one of the following statements is correct in this case?

A. The positive charges are transferred from rod to wool

B. The positive charges are transferred from wool to rod

C. The negative charges are transferred from rod to wool

D. The negative charges are transferred from wool to rod

Right Answer is: D

SOLUTION

When a rod is rubbed by wool, the rod becomes negatively charged while the wool becomes positively charged. This is because the electron in wool are less tightly bounded than electron in rod. So the friction between during rubbing makes the rod to gain electron from wool to rod.

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