Question
Physics Question on Current electricity
4 cells each of emf2 V and internal resistance of 1O are connected in parallel to a load resistor of 2O . Then the current through the load resistor is
A
2A
B
1.5A
C
1A
D
0.888A
Answer
0.888A
Explanation
Solution
The combined resistance of combination is
R′=R+4r=2+41=49
V=2volt
∴V=iR
⇒i=RV=92×4=98
=0.888A