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Voltmeter MCQ - Practice Questions with Answers
Edited By admin | Updated on Sep 25, 2023 25:23 PM | #NEET
Quick Facts
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Voltmeter is considered one of the most asked concept.
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18 Questions around this concept.
Solve by difficulty
An ideal voltmeter V is connected to a resistor and a battery with emf
and internal resistance
as in figure.
The ratio of current in resistor with the voltage of the battery
In the given circuit, the voltmeter and the electric cell are ideal. Find the reading of the voltmeter
A constant 60 V d.c. supply is connected across two resistors of resistance 400 and 200
. What is the reading of the voltmeter, also of resistance 200
, when connected across the second resistor as shown in Figure?
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An ammeter A of finite resistance and a resistor R are joined is series to an ideal cell C.A Potentiometer P is joined in parallel to R. The ammeter reading is and the potentiometer reading is
. P is now replaced by a voltmeter of finite resistance. The ammeter reading now is I and the voltmeter reading is V. Then
A constant voltage dc source is connected, as shown in Figure, across two resistors of resistances 400 k and 100 k
What is the reading of the voltmeter, also of resistance 100 k , when connected across the second resistor as shown?
A, B and C are voltmeters of resistance R, 1.5 R and 3 R, respectively. When some potential difference is applied between X and Y, the voltmeter reading are and
, respectively. Then
. A voltmeter having a resistance of 1800 is employed to meaure the potential difference across 200
resistance which is connected to be power supply of 50 V and internal resistance 20
. What is the approximate percentage change in the p.d. across 200
resistance as a result of connecting the voltmeter across it?
Silver and copper voltameter are connected in parallel with a battery of e.m.f. . In 30 minutes,
of silver and
of copper are liberated. The power supplied by the battery is
A voltmeter has a resistance of G ohm and range V volt. The value of resistance used in series to convert it into a voltmeter of range n V volt is
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This ebook serves as a valuable study guide for NEET exams, specifically designed to assist students in light of recent changes and the removal of certain topics from the NEET exam.
Download EBook,A candidate connects a moving coil voltmeter V, a moving coil ammeter A and a resisot R as shown in Figure. If the voltmeter reads 20 V and the ammeter reads 4 A, R is
Concepts Covered - 1
Voltmeter
Voltmeter
It is a device used to measure Potential difference and is always put in parallel with the circuit element whose voltage is to be measured
Conversion of galvanometer into voltmeter: by Connecting a large Resistance in series.
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The equivalent resistance of the combination is
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The required value of high resistance to be connected in series with the galvanometer is
. V is the total voltage applied across the circuit and
is the total voltage drop across the galvanometer.
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if
part of the applied voltage across galvanometer, that is
, then
.
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