Physics A moving coil galvanometer of resistance 100? gives half scale deflection for a current of 20mA. What will be the potential difference across it ? Options:A. 4 voltB. 5 voltC. 2 voltD. 0.4 voltView AnswerC. 2 volt Continue Reading Previous: The magnetic field strength of solenoid is__________________?Next: pure resistor circuit the voltage and current are_______________?