Ammeter - Practice Questions & MCQ

Consider a galvanometer shunted with 5 $\Omega$ resistance and 2% of current passes through it. What is the resistance of the given galvanometer?
 

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

Consider a circuit as shown in Fig. We want to measure the current flowing in the circuit.

For this, we connect an ammeter of resistance R_A in the circuit. The percentage error in the current is

A galvanometer having coil resistance of 400 ohm gives a full-scale deflection of $2 m A$ is passed through it. The value of the resistance which can convert this galvanometer into an ammeter giving a full defection for a Current of $20 \mathrm{~A}$ is:

In an ammeter, 5% of the main current passes through the galvanometer. If resistance of the galvanometer is G, the resistance of ammeter will be:

A galvanometer of resistance R is shunted by a resistance S.The equivalent resistance of combination is

A shunt across a galvanometer

The ammeter in the fig.  consists of a 500$\Omega$ coil connected in the parallel to 25$\Omega$ shunt. Find the reading of the ammeter.

A shunt across a galvanometer can be used to convert galvanometer to