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Why two coils are used in helmholtz galvanometer?

Two coils are used in Helmholtz galvanometer to provide a more uniform magnetic field between them. This helps in achieving better sensitivity and accuracy in measuring small currents. The two coils generate a magnetic field that stabilizes and enhances the galvanometer's performance.


What is galvanometer constant and how to find it?

The galvanometer constant is the factor that relates the deflection of a galvanometer to the current passing through it. It is usually given as the current required to produce a unit deflection (such as one full-scale deflection) on the galvanometer. To find the galvanometer constant, you can pass a known current through the galvanometer and measure the corresponding deflection, then calculate the constant as the current divided by the deflection.


Which circumstances would a current register on the galvanometer?

A current would register on a galvanometer when there is a flow of electric charge through the circuit that the galvanometer is connected to. The galvanometer measures the strength and direction of the current passing through it, displaying this information as a deflection on its dial.


Does galvanometer have polarity?

No, a galvanometer does not have polarity. It is a device used to detect and measure small electric currents. The deflection of the needle in a galvanometer indicates the presence and direction of the current but not the polarity.


How you convert galvanometer into ammeter in detail?

By attaching a resistance in parallel connection with the galvanometer. Or when a low resistor connected in parallel with galvanometer ,the galvanometer is converted in ammeter. and the resistor is called shunt resistance.

Related Questions

Why two coils are used in helmholtz galvanometer?

Two coils are used in Helmholtz galvanometer to provide a more uniform magnetic field between them. This helps in achieving better sensitivity and accuracy in measuring small currents. The two coils generate a magnetic field that stabilizes and enhances the galvanometer's performance.


When was Richard von Helmholtz born?

Richard von Helmholtz was born in 1852.


When did Richard von Helmholtz die?

Richard von Helmholtz died in 1934.


What is the difference between the construction of a moving coil galvanometer and a ballistic galvanometer?

What is the difference between the construction of a moving coil galvanometer and a ballistic galvanometer?


What is a NULL Point of a galvanometer?

Its a point on the galvanometer where the galvanometer shows no deflection as no current passes through it.


When was Hermann von Helmholtz born?

Hermann von Helmholtz was born on August 31, 1821.


Helmholtz equation rectangular coordinates?

in helmholtz vector equation why F=-∆ф+∆xA?


Does a galvanometer have a reversed current or not?

The current is reversed in a galvanometer


What is Hermann von Helmholtz's birthday?

Hermann von Helmholtz was born on August 31, 1821.


What has the author Helmholtz written?

Helmholtz. has written: 'Ueber die erste Entwickelung der Hellenen'


What is the significant application of Helmholtz free energy?

how does helmholtz free energy applies to real world examples


When did Hermann von Helmholtz die?

Hermann von Helmholtz died on September 8, 1894 at the age of 73.