Let P, Q, R be three substances. Following observations were made on rubbing these substances with each other
| Substances rubbed | Substance acquiring +ve charge | Substance acquiring –ve charge |
| (i) P and Q (ii) P and R |
P R |
Q P |
What will happen when object made of substance Q is rubbed against an object made of substance R?
(1) Q becomes positively charged; R becomes positively charged
(2) Q becomes positively charged; R becomes negatively charged
(3) Q becomes negatively charged; R becomes positively charged
(4) Q becomes negatively charged; R becomes negatively charged
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