Question
A galvanometer of resistance 50 ohm which gives a full deflection for 1mA is to be adapted to measure currents up to 5A. Calculate the resistance of the resistor required
Answers
5A = 5,000mA.
Ig = 1mA. = Current through the galvanometer.
Ir = 4,999mA = Current through the resistor.
R = (1mA/4,999mA) * 50 Ohms = 0.01 Ohms in parallel with the galvanometer.
Ig = 1mA. = Current through the galvanometer.
Ir = 4,999mA = Current through the resistor.
R = (1mA/4,999mA) * 50 Ohms = 0.01 Ohms in parallel with the galvanometer.
I love it
I don't understand
Related Questions
8. A galvanometer has a coil resistance of 100 ohms and gives a full scale deflection when the poten...
The coil of wire in a galvanometer has a resistance of RC = 78.0 Ù. The galvanometer exhibits a full...
1)a galvanometer has a resistance of 40 ohm and is of 3 mA full-scale deflection.how would you modif...
A galvanometer of internal resistance 100 gives a full deflection for the residence necessary to the...