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In the circuit shown in Fig 7.25, (a) ...

In the circuit shown in Fig `7.25`,
(a) what must the `emf epsilon` of the battery be in order for a current of `2.00 A` to flow through the `5.00 V` battery , as shown ? In the polarity of the battery correct as shown ?
b. How long does it take for `60.0 J` of thermal energy to be produced in the `10.0 Omega `resistor?

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