Current Electricity

Question

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

Accepted Answer

Option C. When an ammeter is designed, a shunt resistor (…) is placed in parallel with the galvanometer to ensure that only a small fraction of the total current passes through the galvanometer itself. This is done because the galvanometer is usually a sensitive instrument designed to measure small currents, and passing a large current through it could damage it.

More on Current Electricity

Current Electricity

More on Current Electricity