How real voltmeter works

  • #1

Homework Statement



A voltmeter with resistance R_V is connected across the terminals of a battery of emf EMF and internal resistance r. Find the potential difference V_meter measured by the voltmeter.

Homework Equations



v=IR Vab= Va -Vb

The Attempt at a Solution



tried using equations with epsolon.
 

Answers and Replies

  • #2
1,341
3
Just go in a loop around the circuit, and re-arrange for Vf-Vi
 
Last edited:

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