What is the bulbs resistance

Reference no: EM13541441

Two 1.50-V batteries—with their positive terminals in the same direction—are inserted in series into the barrel of a flashlight. One battery has an internal resistance of 0.250 ?, the other an internal resistance of 0.120 ?. When the switch is closed, a current of 600 mA occurs in the lamp.

(a) What is the bulb's resistance?
(b) What fraction of the chemical energy transformed appears as internal energy in the batteries?

Reference no: EM13541441

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