A wire of resistance 8.0 is connected to a battery whose emf is 4.0 V and whose internal resistance is 1.0 2. (a) How much energy is transferred from chemical to electrical form in 2.0 min? (b) How much energy appears in the wire as thermal energy in that time?

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter28: Current And Resistance
Section: Chapter Questions
Problem 67PQ
Question

I found 211.2 J for question A and I keep getting it wrong for part b 

 
 
 
A wire of resistance 8.0 is connected to a battery whose emf is 4.0 V and whose internal resistance is 1.0 2.
(a) How much energy is transferred from chemical to electrical form in 2.0 min?
(b) How much energy appears in the wire as thermal energy in that time?
Transcribed Image Text:A wire of resistance 8.0 is connected to a battery whose emf is 4.0 V and whose internal resistance is 1.0 2. (a) How much energy is transferred from chemical to electrical form in 2.0 min? (b) How much energy appears in the wire as thermal energy in that time?
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