Ammeter - Practice Questions & MCQ

A galvanometer of resistance , shunted by a resistance of  gives a deflection of 50 divisions when joined in series with a resistance of  and a 2 volt accumulator, The current sensitivity of galvanometer (in ) is 

Two resistors 400 ohm and 800 ohm are connected in series with a 6V battery. It is desired to measure the current in the circuit. An ammeter of 10 ohm resistance is used for this purpose. The reading in the ammeter is:

The sensitivity of a galvanometer of resistance 406 ohm is increased by 30 times. The shunt used is :

The sensitivity of a galvanometer of resistance 406 ohm is increased by 30 times.
The shunt used is :
 

Find the reading of the ammeters   (in ampere) connected as shown in the network. 

In the circuit as shown in figure, the current in ammeter is:

A moving coil galvanometer is converted into an ammeter reading up to 0.03 A by connecting a shunt of resistance 4r across it and into an ammeter reading up to 0.06 A when a shunt of resistance r is connected across it. What is the maximum current which can be sent through this galvanometer, if no shunt is used?

A galvanometer having 50 divisions provided with a variable shunt  which is used to measure the current when connected in series with a resistance of and a battery of internal resistance .It is observed that when the shunt resistances are and ,the deflection are respectively 9 and 30 division. The resistance of the Galvanometer is :

The reading of ammeter in the  figure shown below is