True or False: While discharging, the terminal voltage of a battery can never be greater than the emf of the battery
1.False
2.True
2
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A violation of the second law of thermodynamics would occur if
a. a ball lying on the ground started to bounce. b. transfer of energy by heat moved energy from an object at low temperature to an object at a higher temperature. c. a motion picture was run backwards through the projector. d. any of the above occurred. e. (a) or (b) occurred, but not (c).
Reactance: In the circuit shown in the figure, the 60-Hz ac source has a voltage amplitude of 120 V, the capacitive reactance is 820 ?, the inductive reactance is 330 ?, and the resistance is 550 ?. What is the capacitance C of the capacitor?
A. 3.2 µF B. 6.3 µF C. 9.4 µF D. 13 µF E. 20 µF