Physics, 05.02.2020 12:43, JimmySample7
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 0.240 ω, the other an internal resistance of 0.180 ω. when the switch is closed, a current of 600 ma occurs in the lamp. (a) what is the bulb's resistance? ω (b) what fraction of the chemical energy transformed appears as internal energy in the batteries? %
Answers: 3
Physics, 22.06.2019 10:30, zoebtharpe
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
Answers: 2
Two 1.50-v batteries—with their positive terminals in the same direction—are inserted in series into...
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