Consider three point objects P, Q and R. P an | vedclass

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(B) Let the charges on objects $P, Q,$ and $R$ be $q_P, q_Q,$ and $q_R$ respectively.Since $P$ and $Q$ repel each other,they must have charges of the

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Attractive force

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(B) Let the charges on objects $P, Q,$ and $R$ be $q_P, q_Q,$ and $q_R$ respectively.Since $P$ and $Q$ repel each other,they must have charges of the same sign (both positive or both negative). Thus,$q_P$ and $q_Q$ have the same sign.Since $P$ and $R$ attract each other,they must have charges of opposite signs. Thus,$q_P$ and $q_R$ have opposite signs.Since $q_Q$ has the same sign as $q_P$,and $q_R$ has the opposite sign to $q_P$,it follows that $q_Q$ and $q_R$ must have opposite signs.Objects with opposite charges attract each other. Therefore,the force between $Q$ and $R$ is attractive.

Consider three point objects $P, Q$ and $R$. $P$ and $Q$ repel each other,while $P$ and $R$ attract. What is the nature of the force between $Q$ and $R$?

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