Galvanometer and Its Types

IMPORTANT

Galvanometer and Its Types: Overview

This topic covers concepts, such as Galvanometer, Types of Galvanometer, Moving Coil Galvanometer, Moving Magnet Galvanometer, Types of Moving Coil Galvanometer, Suspended Coil Galvanometer and Pivoted Coil Galvanometer.

Important Questions on Galvanometer and Its Types

EASY
IMPORTANT

A moving coil galvanometer on connecting with a high resistance in series is converted into:

EASY
IMPORTANT

What are the different types of galvanometer.

EASY
IMPORTANT

Draw a neat and labelled diagram of a suspended moving coil galvanometer. Also, show that the current through an MCG is directly proportional to the deflection of a coil.

EASY
IMPORTANT

Why the coil of the moving coil galvanometer is wound over an aluminium frame.

EASY
IMPORTANT

The radial magnetic field is used in a suspended coil galvanometer to provide-

EASY
IMPORTANT

State properties of the material of the wire used for suspension of the coil in a Suspended Coil Galvanometer.

EASY
IMPORTANT

Why the pole piece of the magnet used in a pivoted coil galvanometer are Cylindrical surface of a bar magnet

EASY
IMPORTANT

What is pivoted coil galvanometer

EASY
IMPORTANT

What is the construction of moving coil galvanometer?

EASY
IMPORTANT

Describe the working mechanism of pivoted coil galvanometer.

EASY
IMPORTANT

Why in a moving coil galvanometer, a strong horseshoe magnet of concave shaped pole pieces is used

EASY
IMPORTANT

Write the Types of Galvanometer.

EASY
IMPORTANT

In order to increase the sensitivity of galvanometer,

MEDIUM
IMPORTANT

The thermo e.m.f of the copper-constantan couple is 40 μV per degree. The smallest temperature difference that can be detected with this couple and a galvanometer of 100 Ω resistance capable of measuring the minimum current of 1 μA is:

EASY
IMPORTANT

The maximum current in a galvanometer can be 10 mA. It's resistance is 10Ω. To convert it into an ammeter of 1 A, a resistor should be connected in

MEDIUM
IMPORTANT

When a galvanometer is shunted with a 4 Ω resistance, the deflection is reduced to one-fifth. If the galvanometer is further shunted with a 2 Ω wire, find the ratio of decrease in current to the previous current (the main current remains the same).

EASY
IMPORTANT

Two galvanometers A and B requires 2 mA and 3 mA current, respectively to produce the same deflection of 10 division. Then

HARD
IMPORTANT

To verify Ohm's law, a student is provided with a test resistor RT, a high resistance R1, a small resistance R2, two identical galvanometers G1 and G2, and a variable voltage source V.. The correct circuit to carry out the experiment is:-  

EASY
IMPORTANT

Identify the option which indicates the correct method to convert a moving coil galvanometer into an ammeter.

MEDIUM
IMPORTANT

Choose the option which correctly depicts the deflection (ϕ) on the scale of a moving coil galvanometer.