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Figure 6.51 shows a simple a potentiomet...

Figure `6.51` shows a simple a potentiometer circuit for measuring a small emf produced by a thermocouple.

The meter wire `PQ` has a resistance of `5 Omega`, and the driver cell has an emf of `2.00 V`. If a balance point is obtained `0.600 m` along `PQ` when measuring an emf of `6.00 mV`,
what is the value of resistance `R`?

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