Two identical cells connected in series send 10 A current through a 5 W resistor. When they are connected in parallel, they send 8 A current through same resistance. What is internal resistance of each cell?
Two identical cells connected in series send 10 A current through a 5 W resistor. When they are connected in parallel, they send 8 A current through same resistance. What is internal resistance of each cell?
Option 1 -
2.5 Ω
Option 2 -
1 Ω
Option 3 -
1.5 Ω
Option 4 -
1.9 Ω
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1 Answer
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Correct Option - 1
Detailed Solution:
Similar Questions for you
It is balanced wheatstone bridge
Since Gand S are in parallel
-> VG = VS
->3mA * 10 = 8A * RS
->RS = 3.75mW
Equivalent circuit
(VP– VQ) = 0.9 * 6 – 0.9 * 2
VC = 3.6V
U =
= 25.92mJ
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