Teaching HTET PGT Level 3 - 2024 Mock Test Physics Current, Resistance and Electricity Resistance and Resistivity
A galvanometer has a coil of resistance 200 Ω with a full scale deflection at 20 μA. The value of resistance to be added to use it as an ammeter of range (0–20) mA is:
1
0.40 Ω
2
0.20 Ω
3
0.50 Ω
4
0.10 Ω