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The resistance of a parallel circuit con-sisting of two branches is 12 ohms. Ifthe resistance of one branch is 18 ohms,what is the resistance of the other ? |
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Answer» Answer: 36 ohms Step-by-step EXPLANATION: When RESISTANCES are connected in PARALLEL then, (1/R EFF)=(1/R1) + (1/R2) [R eff is the effective resistance of the total circuit] =>(1/12)=(1/18)+(1/R2) =>{(1/12)-(1/18)}=1/R2 =>{(3/36)-(2/36)}=1/R2 [By taking LCM] =>1/36=1/R2 =>R2=36 ohms. |
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