Questions
A cell of emf 10 V and internal resistance 0.5 Ω is being changed by 2A current as shown in figure. Then chemical energy is stored in the cell at the rate of
detailed solution
Correct option is A
Potential difference between the terminals of the cell, V = (10 - 2 x 0.5) volt = 9 volt. ∴ Rate at which chemical energy is stored = Vi = 9 x 2 W= 18 W.Talk to our academic expert!
Similar Questions
A resistor R is connected across a battery of emf 12 V. It observed that terminal potential differenceis 9 V and the power delivered to resistor is 18 W. Internal resistance of the battery ‘r’ and the resistance R are respectively
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