Current Electricity and Electrical InstrumentHard
Question
The length of a potentiometer wire is 10m. A standard cell of 1.1 volt is balanced at 550cm length of the wire. The maximum potential difference that can be measured with it is :-
Options
A.1.25 V
B.1.10 V
C.1.55 V
D.2.0 V
Solution
∵ x = 
Volt/meter
and maximum potential across wire
= xL =
(10) = 2V
Volt/meterand maximum potential across wire
= xL =
(10) = 2VCreate 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
In the following circuit the value of currents I1 and I2 are :-...A battery of emf E and internal resistance r is connected across a resistance R. Resistance R can be adjusted to any val...The resistance of all the wires between any two adjacent dots is R. The equivalent resistance between A and B as shown i...A 5V battery with internal resistance 2Ω and a 2V battery with internal resistance 1Ω are connected to a 10	...Statement-1 : Resistance of thermistor always decreases with the increase in temperature. Statement-2 : Thermistor is ma...