Internal Resistance Problem.. what is R2?

By Mel | Published: January 27, 2012

Internal Resistance Problem.. what is R2?

https://homework.ps.uci.edu/webwork_course_files/2012Winter_Physics_3LB_47223/tmp/gif/Phys3LB_Week3-prob2-f33.gif
(this is a link to the image of the circuit)

Internal resistance problem. Suppose that in Figure 3.3, Vo=7V, R1=250k, R2=425k, and Ri=17M. Initially, the voltmeter is disconnected.
EXAMPLES:
What is the voltage across R2? [Answer: 4.40740740740741 V.]
What is the voltage across R2 with the meter connected? [Answer: 4.03389830508475 V.]
QUESTION:
If the internal resistance of the meter were 15 M , what is the voltage across R2?

R2 = —-V

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