(B) The deflection $\theta$ in a moving coil galvanometer is given by the formula $\theta = \frac{NiAB}{k}$,where $N$ is the number of turns,$i$ is th

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Directly proportional to the number of turns in the coil

(B) The deflection $\theta$ in a moving coil galvanometer is given by the formula $\theta = \frac{NiAB}{k}$,where $N$ is the number of turns,$i$ is the current,$A$ is the area of the coil,$B$ is the magnetic field,and $k$ is the torsional constant of the spring.From this relation,it is clear that $\theta \propto N$.Therefore,the deflection is directly proportional to the number of turns in the coil.

Class 12 Physics Moving Charges and Magnetism The Moving Coil Galvanometer (Sensitivity) and Ammeter and Voltmeter Conversion

Easy

The deflection in a moving coil galvanometer is

A
Directly proportional to the torsional constant
B
Directly proportional to the number of turns in the coil
C
Inversely proportional to the area of the coil
D
Inversely proportional to the current flowing

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Moving Charges and Magnetism

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The Moving Coil Galvanometer (Sensitivity) and Ammeter and Voltmeter Conversion

When a resistance of $200\Omega$ is connected in series with a galvanometer of resistance $G$, its range is $V$. To triple its range, a resistance of $2000\Omega$ is connected in series. The value of $G$ is (in $\Omega$)

DifficultMHT CET 2026

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The sensitivity of a galvanometer is $60 \text{ division/A}$. When a shunt is used,its sensitivity becomes $10 \text{ division/A}$. If the galvanometer is of resistance $20 \ \Omega$,the value of shunt used is (in $\Omega$)

DifficultTS EAMCET 2011

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$A$ moving coil sensitive galvanometer shows a large deflection. To control its speed of deflection (damping),which of the following is used?

Easy

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$A$ galvanometer gives a full-scale reading of $50 \ mA$,when a potential difference across its terminals is $0.15 \ V$. It can be used as an ammeter of range $0 - 100 \ A$ by connecting a shunt resistance of: (in $\Omega$)

Medium

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In the given figure,an ammeter $A$ consists of a $240 \Omega$ coil connected in parallel to a $10 \Omega$ shunt. The reading of the ammeter is . . . . . . $mA$.

DifficultJEE MAIN 2024

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The deflection in a moving coil galvanometer is

Similar Questions

When a resistance of $200\Omega$ is connected in series with a galvanometer of resistance $G$, its range is $V$. To triple its range, a resistance of $2000\Omega$ is connected in series. The value of $G$ is (in $\Omega$)

The sensitivity of a galvanometer is $60 \text{ division/A}$. When a shunt is used,its sensitivity becomes $10 \text{ division/A}$. If the galvanometer is of resistance $20 \ \Omega$,the value of shunt used is (in $\Omega$)

$A$ moving coil sensitive galvanometer shows a large deflection. To control its speed of deflection (damping),which of the following is used?

$A$ galvanometer gives a full-scale reading of $50 \ mA$,when a potential difference across its terminals is $0.15 \ V$. It can be used as an ammeter of range $0 - 100 \ A$ by connecting a shunt resistance of: (in $\Omega$)

In the given figure,an ammeter $A$ consists of a $240 \Omega$ coil connected in parallel to a $10 \Omega$ shunt. The reading of the ammeter is . . . . . . $mA$.

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