Neco Model Questions Vol1 2017 Physics Question 49
Practice objective / multiple choice question 49 from the 2017 Neco Model Questions Vol1 Physics examination.
A 12 V battery has an internal resistance of \(0.5\ \Omega\). It is connected to two parallel branches. Branch A contains a resistor \(R_{1}=4\ \Omega\) in series with an unknown resistor \(R_{x}=x\ \Omega\). Branch B contains a single resistor \(R_{3}=6\ \Omega\). The total current supplied by the battery is measured to be \(2\ \text{A}\). Determine the value of \(x\) (in ohms, to the nearest whole number) and then calculate the power dissipated in the resistor \(R_{x}\) (in watts, to two decimal places).
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This is Neco Model Questions Vol1 2017 Physics Question 49. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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