Neco Model Questions Vol1 2022 Physics Question 33

Practice objective / multiple choice question 33 from the 2022 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2022 Physics Objective / Multiple Choice Hard Difficulty
Question 33 NECO_MODEL_QUESTIONS_VOL1 • 2022 • PHYSICS • objective

A battery of emf \(E\) V and internal resistance \(r\) Ω is connected to an external circuit consisting of a 6 Ω resistor in parallel with a 12 Ω resistor, and this combination is in series with an 8 Ω resistor. With this single battery the terminal voltage across the external circuit is \(24\) V and the current drawn from the battery is \(2\) A. When a second identical battery is connected in parallel with the first, the terminal voltage rises to \(30\) V. Determine the emf \(E\) of each battery and the internal resistance \(r\) (both to the nearest ohm).

Answer Options

A. E = 44 V, r = 6 Ω
Correct Answer B. E = 40 V, r = 8 Ω
C. E = 48 V, r = 12 Ω
D. E = 36 V, r = 10 Ω
Correct Answer
B
Correct Option:
E = 40 V, r = 8 Ω

About This Question

This is Neco Model Questions Vol1 2022 Physics Question 33. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Physics examination.

Difficulty level: Hard .

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