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Back EMF equation, need help

  • Thread starter Girn
  • Start date
3
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1. Homework Statement
An A/C starter has a 12V supply & a back EMF of 6V. If the resistance is 0.1 ohms, calculate current during start-up & while in operation

2. Homework Equations
E=IR
Not sure what else? Sorry im stuck.

3. The Attempt at a Solution
Start up current
E=IR
12V=I x .01
I = 120A

operating current
6V=I x .01
I = 60A
 

cnh1995

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NascentOxygen

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An A/C starter has a 12V supply & a back EMF of 6V.
What is A/C an abbreviation for?
 

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