JEE Main 2022 · 29 Jun · Shift 2 · Physics Q54

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PhysicsInteger+4 / -1Question 54 of 90

Two resistors are connected in series across a battery as shown in figure. If a voltmeter of resistance 2000 $\Omega$ is used to measure the potential difference across 500 $\Omega$ resister, the reading of the voltmeter will be ______ V

A 500 Ω and a 600 Ω resistor in series across a 20 V battery.

Your answer

Answer and worked solution

Official answer: 8

Voltmeter in parallel with 500 Ω: $400$ Ω. Total $1000$ Ω, current 20 mA.

Reading $20\text{ mA}\times400=8$ V.

Answer: 8

Topics:Ammeters and voltmeters Series and parallel resistors

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JEE Main 2022 · 29 Jun · Shift 2, Physics question 54