Current Electricity and Electrical InstrumentHard
Question
A galvanometer of resistance G, is shunted by a resistance SΩ. To keep the main current in the circuit unchanged, the resistance to be put in series with the galvanometer is
Options
A.
B.
C.
D.
Solution
Let resistance R is be put in series with galvanometer G to keep the main current in the circuit unchanged.
∴
⇒ 
∴
⇒ Create a free account to view solution
View Solution FreeTopic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
A battery of internal resistance 4Ω is connected to the network of resistance as shown in figure. In order that the...The specific resistance of a metal wire is 64 × 10−6 Ω × cm., the length is 198 cm and the resistan...In the adjacent circuit, AB is a potentiometer wires of length 40 cm no resistance per unit length 50Ω /m. As shown...A microammeter has a resistance of 100Ω and full scale reange of μ A. It can be used as voltmeter or as higher...In the given circuit at t = 0 switch is on. Then after how much time voltage across resistance is 37 volt...