1) The symbolic form of the following circuit is (where p,q represents switches S1 and S2 closed respectively ) A) $(p\wedge q)\wedge (\sim p\wedge \sim q)=l$ B) $(p\wedge [q\wedge (\sim p\wedge \sim q)=l$ C) $(p\vee q)\vee (\sim p\wedge \sim q)=l$ D) $(p\vee [q\wedge (\sim p\wedge \sim q)=l$ Answer: Option CExplanation: Here , p,q represents switches S1 and S2 closed respectively, here, S1, S2 , (S1' and S2' ) are in parallel and S1' and S2' are series $\therefore$ l= $(p\vee q)\vee (\sim p\wedge \sim q)$