City Guilds Model Questions Vol1 2020 Engineering Question 43
Practice objective / multiple choice question 43 from the 2020 City Guilds Model Questions Vol1 Engineering examination.
A DC circuit is powered by a \(12\) V source and contains two parallel branches. Branch 1 consists of a resistor \(R_{1}\) in series with a lamp of resistance \(6\) Ω. Branch 2 consists of two resistors \(R_{2}\) and \(R_{3}\) in series. The total current drawn from the source is \(4\) A and the lamp must not exceed its rated power of \(24\) W. Find integer values (in ohms) for \(R_{1}, R_{2}, R_{3}\) that satisfy the conditions and give the smallest possible total resistance of branch 2.
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About This Question
This is City Guilds Model Questions Vol1 2020 Engineering Question 43. It is one of the objective questions from the 2020 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Medium .
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