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When two identical batteries of internal resistance 1 each (having polarity in same direction) are connected in series across a resistor R, the rate of heat produced in R is P1. When the same batteries(having polarity in same direction) are connected in parallel across R, the rate is P2. If P1 = 2.25 P2 then find the value of R in ohm

When two identical batteries of internal resistance 1 each (having polarity in same direction) are connected in series across a resistor R, the rate of heat produced in R is P1. When the same batteries(having polarity in same direction) are connected in parallel across R, the rate is P2. If P1 = 2.25 P2 then find the value of R in ohm

Grade:10

2 Answers

Arun
25750 Points
5 years ago
Dear Bikash
 
I am getting my answer as R = 4 ohm.
 
Hope it helps
 
Regards
Arun (askIITians forum expert)
Bikash
12 Points
5 years ago
Question : When two identical batteries of internal resistance 1 each (having polarity in same direction) are connected in series across a resistor R, the rate of heat produced in R is P1. When the same batteries(having polarity in same direction) are connected in parallel across R, the rate is P2. If P1 = 2.25 P2 then find the value of R in ohm
Dear Arun, 
Can you pls explain how yoi are getting this answer as R = 4 ohm.
 
Regards,
Bikash
 

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