Physics

Physics, 03.07.2019 21:40, addisonrausch

The emf of a battery is equal to its terminal potential difference: a) under all conditions b) only when the battery is being charged c) only when a large cwrrent is in the battery d) only when there is no current in the battery e) under no conditions

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Physics, 09.07.2019 02:30, kleathers97

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Physics, 19.07.2019 23:20, Ashleymsmith

Drag a battery into the construction panel, and use the voltmeter to determine which end of the battery is the positive terminal. the positive terminal has a higher potential than the negative terminal (recall that the voltmeter measures the potential difference between the red probe and the black probe). which end of the battery is the positive terminal?

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Physics, 09.10.2019 04:00, samm2002

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Engineering, 15.10.2019 17:10, edramirez1914

Acar battery with a 12-v emf and an internal resistance of 0.050 ω is being charged with a current of 60 a. note that in this process the battery is being charged. (a) what is the potential difference across its terminals? (b) at what rate is thermal energy being dissipated in the battery? (c) at what rate is electric energy being converted to chemical energy? (d) what are the answers to (a) and (b) when the battery is used to supply 60 a to the starter motor?

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