Current Electricity and Electrical InstrumentHard
Question
In the following circuit, the resistance of a voltmeter is 10,000 Ω and that of an ammeter is 20 Ω . If the reading of an ammeter is 0.1 amp. and that of voltmeter is 12 volt, then the value of R is :-


Options
A.122 Ω
B.100 Ω
C.118 Ω
D.116 Ω
Topic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
On interchanging the resistances, the balance point of a meter bridge shifts to the left by 10 cm. The resistance of t...Two heating coils, one of fine wire and the other of thick wire made of same material and of same length are connected i...A battery consists of a variable number n of identical cells having internal resistance connected in series. The termina...Consider the circuit shown in the figure...There are eight resistances of R ohm each. Two-two resistances are connected in parallel to form couples and these coupl...