City Guilds Model Questions Vol1 2018 Engineering Question 2
Practice objective / multiple choice question 2 from the 2018 City Guilds Model Questions Vol1 Engineering examination.
A circuit is powered by a 120 V source. The total resistance of the circuit is 30 \(\Omega\). The circuit consists of a resistor \(R_{1}\) in series with a parallel combination of resistors \(R_{2}\) and \(R_{3}\). The value of \(R_{2}\) is 20 \(\Omega\) and the power dissipated in \(R_{3}\) is 80 W. Determine the resistance \(R_{1}\) (in ohms).
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About This Question
This is City Guilds Model Questions Vol1 2018 Engineering Question 2. It is one of the objective questions from the 2018 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Medium .
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