A negatively charged rod is brought near the cap of an electroscope. The cap is earthed momentarily while the charge is near to it. The rod is then removed. Which statement is correct?
The cap will be positively charged and the will be negatively charged
The cap will be negatively charged and the leaf will be positively changed
The cap and the leaf will be positively charged
The cap and the leaf will be negatively charged
none
Correct answer is D
No explanation has been provided for this answer.