QUESTION 5 A battery connected in the circuit given below has an emf of 20.0 V and an internal resistance of 5.51 milli-ohm. The current flowing through the circuit is 31.6 A. a) Find the resistance R in the circuit upto three significant figures. b) Calculate the voltage drop across the internal resistance r c) ) Calculate the voltage drop across the external resistance R Submit the resistance you obtained in a) (with three significant figures) as your answer. You are required to show your work for a), b) and c) in the file you submit.
QUESTION 5 A battery connected in the circuit given below has an emf of 20.0 V and an internal resistance of 5.51 milli-ohm. The current flowing through the circuit is 31.6 A. a) Find the resistance R in the circuit upto three significant figures. b) Calculate the voltage drop across the internal resistance r c) ) Calculate the voltage drop across the external resistance R Submit the resistance you obtained in a) (with three significant figures) as your answer. You are required to show your work for a), b) and c) in the file you submit.
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter21: Circuits And Dc Instruments
Section: Chapter Questions
Problem 53PE: A 1,00-?O voltmeter is placed in parallel with a 75.0kresistor in a circuit, (a) Draw a circuit...
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Step 1
Given,
E = 20.0 V
r = 5.51 mili-ohm
I = 31.6 A
(a) Now,
I = E / (R+r)
R = (E / I) - r
R = (20 / 31.6) - 0.00551
R = 0.627 ohm
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