In order to pass 10% of the main current through a moving coil galvanometer of 99 ohms, the resistance of the required shunt is :
(1) 9.9 Ω
(2) 10 Ω
(3) 11 Ω
(4) 9 Ω
When a \(12~\Omega\) resistor is connected in parallel with a moving coil galvanometer, its deflection reduces from \(50\) divisions to \(10\) divisions. What will be the resistance of the galvanometer?
1. \(24~\Omega\)
2. \(36~\Omega\)
3. \(48~\Omega\)
4. \(60~\Omega\)
A voltmeter has a resistance of G ohms and range V volts. The value of resistance used in series to convert it into a voltmeter of range nV volts is :
(1) nG
(2)
(3)
(4)
Which of the following statement is wrong:
(1) Voltmeter should have high resistance
(2) Ammeter should have low resistance
(3) Ammeter is placed in parallel across the conductor in a circuit
(4) Voltmeter is placed in parallel across the conductor in a circuit