Two 150 v batteries -- with their positive terminals in the, Physics

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Two 150 v batteries -- with their positive terminals in the

Two 1.50 V batteries -- with their positive terminals in the same direction -- are inserted in series into the barrel of aflashlight. One battery has an internal resistance of 0.240 Ω, the other an internal resistance of0.110 Ω. When the switch is closed,a current of 600 mA occurs in the lamp.
a) What is the lamp's resistance?
b) What fraction of the chemical energy transformed appears as internal energy in the batteries?

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Physics: Two 150 v batteries -- with their positive terminals in the

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Physics: Two 150 v batteries -- with their positive terminals in the

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