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Olympiad workbook

Exam: Olympiad workbook
Subject: NSEP
Chapter: Current Electricity

Olympiad workbook · NSEP · Current Electricity

Let V and I be the readings of the voltmeter and the ammeter...

Let

V

and

I

be the readings of the voltmeter and the ammeter respectively as shown in the figure. Let

R_V

and

R_A

be their corresponding resistances. Therefore, Let V and I be the readings of the voltmeter and the ammeter respectively as shown in the figure. Let R_V and R_A be

Let V and I be the readings of the voltmeter and the ammeter respectively as shown in the figure. Let R_V and R_A be

Options

A $R=\frac{V}{I}$
BR=\frac{V}{I⁻ $\left(\frac{V}{R_V}\right)}$
C $R=R_V-R_A$
D $R=\frac{V\left(R+R_A\right)}{I R_A}$

Correct answer

B. R=\frac{V}{I⁻ $\left(\frac{V}{R_V}\right)}$

Step-by-step solution

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