Galvanometer and Its Types

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

Two tangent galvanometers $A$ and $B$ have coils of radii $8 \mathrm{cm}$ and $16 \mathrm{cm}$ respectively and resistance $8 \mathrm{\Omega }$ each. They are connected in parallel with a cell of emf $4 \mathrm{V}$ and negligible internal resistance. The deflections produced in the tangent galvanometers $A$ and $B$ are $30° \text{and} 60°$ respectively. If $A$ has $2$ turns, then the number of turns $B$ must have is

A galvanometer of resistance $\mathrm{30 }\mathrm{\Omega }$ is connected to a battery of emf $\mathrm{2\; V}$ with $\mathrm{1970 }\mathrm{\Omega }$ resistance in series. A full scale deflection of $20$ divisions is obtained in the galvanometer. To reduce the deflection to $10$ divisions, the resistance in series required is____$\mathrm{\Omega }$.

What are the different types of galvanometer.

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

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

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

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

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

What is pivoted coil galvanometer

What is the construction of moving coil galvanometer?

Describe the working mechanism of pivoted coil galvanometer.

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

Write the Types of Galvanometer.

A galvanometer having a coil resistance of $100\mathrm{ }\mathrm{\Omega }$ gives a full-scale deflection, when a current of $1 \mathrm{mA}$ is passed through it. The value of the resistance, which can convert this galvanometer into an ammeter giving a full scale deflection for a current of $10 \mathrm{A}$, is:

A galvanometer has $36 \mathrm{\Omega }$ resistance. If a $4 \mathrm{\Omega }$ shunt is added to this, the fraction of current that passes through the shunt is:-

In order to increase the sensitivity of galvanometer,

The thermo e.m.f of the copper-constantan couple is $40 \mathrm{\mu V}$ per degree. The smallest temperature difference that can be detected with this couple and a galvanometer of $100 \mathrm{\Omega }$ resistance capable of measuring the minimum current of $1 \mathrm{\mu A}$ is:

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

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