If an object made of substance A is rubb...

If an object made of substance A is rubbed with an object made of substance B, then A becomes positively charged and B becomes negatively charged. If however, an object made of substance C, then A becomes negatively charged, What will happen if an object made of substance B is rubbed against an object made of substance C?
(a) B becomes positively charged and C becomes positively
(b) B becomes positively charged and C becomes negatively charged.
(c ) B becomes negatively charged and C becomes positively charged.
(d) B becomes negatively charged and C becomes negatively charged.

A

Q becomes positively charged, R becomes positively charged

B

Q becomes positively charged, R becomes negatively charged

C

Q becomes negatively charged, R becomes positively charged

D

Q becomes negatively charged, R becomes negatively charged

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The correct Answer is:

C

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