Current Electricity and Electrical InstrumentEasy
Question
N identical cells whether joined together in series or in parallel, give the same current, when connected to an external resistance of ′R′. The internal resistance of each cell is :-
Options
A.r = nR
B.r = R
C.r = 
D.r = n2R
Topic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
Consider the circuit shown in the figure...A hollow conducting sphere of inner radius R and outer radius 2R has resistivity ′ρ′ as a function of t...If 2 bulbs rated 2.5 W − 110 V and 100 W − 110 V are connected in series to a 220 V supply then...In the following circuit the current flowing the 1kΩ resistor is :-...A galvanometer has resistance 36Ω. If a shunt of 4Ω is added with this, then fraction of current that passes t...