Question

A circuit consists of a power supply and two resistors R1 and R2 connected in parallel....

A circuit consists of a power supply and two resistors R1 and R2 connected in parallel. An ammeter is placed to measure the current through resistor R1.

The ammeter reads I1 = 9.6 mA, and the values of the resistors are R1 = 6.0 kOhm and R2 = 820 Ohm.  

What is the value of voltage across R2?

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Answer #1

R1 = 6 X 10^3 Ohm

   i1 = 9.6 x 10^-3 amp

in parallel combination potential across each resistor is same

               V1 = V2

              i1 R1 = V2


               V2 = 9.6 x 10^-3* 6 X 10^3

                V2 = 57.6 Volts

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