Current Electricity and Electrical InstrumentHard
Question
A potentiometer is connected between A and B and the balance point is obtained at 203, 6cm When the end of the potentiometer connected to B is shifted to C, then the balance point is obtained at 24.6 cm. If now the potentiometer be connected between B and C the balance point will be at


Options
A.179.0 cm
B.197.2 cm
C.212.0 cm
D.228.0 cm
Solution
e1 = 203.6 ....... (i)
e1 - e2 = 24.6 ....... (ii)
(i) - (ii) give e2 = 179.0cm
e1 - e2 = 24.6 ....... (ii)
(i) - (ii) give e2 = 179.0cm
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 storage battery of emf 8.0 V and internal resistance 0.5Ω is being charged by a 120 V dc supply using a series re...A zener diode, having breakdown voltage equal to 15 V, is used in a voltage regulator circuit shown in the figure. The c...The resistance of a coil in a platinum resistance thermometer at 0oC is 5 ohm and at 100oC it is 5.75 ohm. Its resistanc...N sources of current with different emf′s are connected as shown in figure. The emf′s of the sources are pro...A voltmeter of 998 ohm resistance is connected to a cell of emf 2 volt, having internal resistance of 2 ohms, The error ...