Current Electricity and Electrical InstrumentHard
Question
In a potentiometer experiment the balancing with a cell is at length 240 cm. On shunting the cell with a resistance of 2Ω the balancing length becomes 120 cm. The internal resistance of the cell is
Options
A.1 Ω
B.0.5 Ω
C.4 Ω
D.2 Ω
Topic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
The difference in the variation of resistance with temperature in a metal and a semiconductor arises essentially due to ...The current in resistance R at resonance is...The AC voltage across a resistance can be measured using a :...In the circuit shown in figure, A is a sliding contact which can move over a smooth rod PQ. Resistance per unit length o...Two identical cycle wheels (geometrically) have different number of spokes connected from centre to rim. One is having 2...
= 2Ω