Grade 12Electric Current
a galvanometer has a resistance of 20 Ω and reads full scale when 0.2V is applied across it .to convert it into a 10 A ammeter ,the galvanometer coil should have a
1)0.05Ω resistor connected across it
2)100Ω resistor connected across it
3)0.02Ω resistor connected across it
4)200Ω resistor connected in series with it
a galvanometer has a resistance of 20 Ω and reads full scale when 0.2V is applied across it .to convert it into a 10 A ammeter ,the galvanometer coil should have a
1)0.05Ω resistor connected across it
2)100Ω resistor connected across it
3)0.02Ω resistor connected across it
4)200Ω resistor connected in series with it
1)0.05Ω resistor connected across it
2)100Ω resistor connected across it
3)0.02Ω resistor connected across it
4)200Ω resistor connected in series with it
