Current Electricity and Electrical InstrumentHard
Question
A cell of e.m.f. 2V and negligible internal resistance is connected to resistor R1 and R2 as shown in the figure. The resistance of the Voltmeter, R1 and R2 are 80 Ω, 40 W and 80 Ω respectively. The reading of the Voltmeter is : -
Options
A.1.78 V
B.1.60 V
C.0.80 V
D.1.33 V
Topic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
n identical cells are joined in series with its two cells A and B in the loop with reversed polarities. EMF of each cell...In the circuit shown in the figure, the current through...A battery of emf E0 = 12 V is connected across a 4m long uniform wire having resistance . The cells of small emfs e1 = 2...The sensitivity of a potentiometer is increased by...A battery of emf E and internal resistance r is connected across a resistance R. Resistance R can be adjusted to any val...