Which of these energy technologies does not rely on a generator to produce electricity?
Wind turbine
Dynamo
Photovoltaic cell.
Nuclear reactor
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Which of the following statements are true?
The internal resistance of a battery decreases with decreasing temperature.
A battery is a device that produces electricity by transforming chemical energy into electrical energy.
The potential difference between the terminals of a battery, when no current flows to an external circuit, is referred to as the terminal voltage.
A battery does work on electric charges to bring them to a position of higher electric potential energy so that they can flow through a circuit to lower potential energy.
A Carnot freezer that runs on electricity removes heat from thefreezer compartment, which is at -10.0 C and expels it into theroom at 25.0 C.You put an ice-cube tray containing 350 g of waterat 15.0 C into the freezer.-What is the coefficient of performance of this freezer?-How much energy is needed to freeze this water?-How much electrical energy must be supplied to the freezer tofreeze the water?-How much heat does the freezer expel into the room while freezingthe ice?