a resistor of R ohms is connected across a battery of E volts with internal resistance r ohms, then the power (in watts) in the external resistor is P=E2R/(R+r)2 If E and r are fixed but R varies, what is the maximum value of the power

a resistor of R ohms is connected across a battery of E volts with internal resistance r ohms, then the power (in watts) in the external resistor is P=E2R/(R+r)2 If E and r are fixed but R varies, what is the maximum value of the power

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 1PE: (a) What is the resistance often 275-O resistors connected in series? (b) In parallel?

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solve this problem and explain each step, please

a resistor of R ohms is connected across a battery of E volts with internal resistance r ohms, then the power (in watts) in the external resistor is

P=E²R/(R+r)²

If E and r are fixed but R varies, what is the maximum value of the power?

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