Resistance and Ohm's Law

  • #1
1.What is the emf of a battery with a 0.15-ohm internal resistance if the battery delivers 1.5 A to an externally connected 5.0-ohm resistor?








Given that r = 0.15 ohm , I = 1.5 ohm , R = 5 ohm.

By Ohm’s law V = I ( R + r)
= 1.5 (5.15)
E=7.725 V


Is my work/answer correct?
 

Answers and Replies

  • #2
Tom Mattson
Staff Emeritus
Science Advisor
Gold Member
5,500
8
Looks good to me.
 

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