Neco Model Questions Vol1 2023 Physics Question 26

Practice objective / multiple choice question 26 from the 2023 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2023 Physics Objective / Multiple Choice Hard Difficulty
Question 26 NECO_MODEL_QUESTIONS_VOL1 • 2023 • PHYSICS • objective

A battery of emf (E = 24\text{ V}\) has an internal resistance \(r\). It is connected to two external resistors \(R_{1}\) and \(R_{2}\) which are in parallel. The equivalent resistance of the parallel combination is \(6\ \Omega\). When the circuit is operating, the terminal voltage across the parallel combination is measured to be \(18\text{ V}\). Determine the values of \(r\), \(R_{1}\) and \(R_{2}\) given that \(R_{1}=2R_{2}\).

Answer Options

A. r = 3 \Omega, R_{1} = 12 \Omega, R_{2} = 6 \Omega
B. r = 4 \Omega, R_{1} = 16 \Omega, R_{2} = 8 \Omega
Correct Answer C. r = 2 \Omega, R_{1} = 18 \Omega, R_{2} = 9 \Omega
D. r = 1 \Omega, R_{1} = 24 \Omega, R_{2} = 12 \Omega
Correct Answer
C
Correct Option:
r = 2 \Omega, R_{1} = 18 \Omega, R_{2} = 9 \Omega

About This Question

This is Neco Model Questions Vol1 2023 Physics Question 26. It is one of the objective questions from the 2023 Neco Model Questions Vol1 Physics examination.

Difficulty level: Hard .

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