A cell of emf ε and internal resistance r drives a current i through an external resistance R.
A
The cell is generating ε i power
B
Heat is produced in R at the rate ε i
C
Heat is produced in R at the rate ε i 
D
Heat is produced in the cell at the rate ε i 
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(a, c, d)
current i = 
cell generating power = ε i
Heat produced in R at the rate R = i 2 R = iR. 
= ε i. 
Heat produced in r at the rate r = i 2 r = ε i 
.
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