Conversion of galvanometer into voltmeter
In this topic we will discuss about the ‘ Conversion of galvanometer into voltmeter ‘ . What is ammeter? and how can we convert a Galvanometer into voltmeter?
Before to read this topic ‘ Conversion of galvanometer into voltmeter ‘ students must know about the galvanometer and shunt .
This topic is very important topic for class 12th board examination and for other competitive examination ( for medical and engineering entrance examinations )
It is high resistance galvanometer used to measure potential difference between two points of a conductor or circuit.
A galvanometer can be converted into voltmeter by connecting high value resistance in series with the galvanometer( as shown in figure).
Let, G is the resistance of the galvanometer,
IG is the current passes through the galvanometer,
R is the high value resistance in series with the galvanometer.
V is the potential difference of the galvanometer.
So we can write V = IG ( R + G)
Hence R =( V/IG)- G ;
Resistance of the voltmeter Rs = R + G ;
So we can say ,for ideal voltmeter the resistance of the voltmeter should be infinity.
This topic is very important for all state class 12th board examination and for other entrance examination , therefore it is important to solve the assignment of this topic .
In the assignment , we provide all kind of questions like , objective , short answer type, long answer type , numericals and hots . After solving the assignment of this chapter students will be able to improve there knowledge on this chapter.
But students must solve the questions base on its previous topic.
We are providing the link , so that students should clear all topic of this chapter- click here for ammeter