As an auto mechanic, you need to determine the emf and internal resistance of an old battery. You perform two measurements. In the first, you apply a voltmeter to the battery's terminals and read 11.8 V.11.8 V. In the second, an ammeter applied to the terminals indicates 19.5 A.19.5 A. What are the battery's emf and internal resistance?

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Q: An auto mechanic needs to determine the emf and internal resistance of an old battery. He performs…

A: The auto mechanic performs two measurments.

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A: Given: equivalent resistance (R)= 0.075 Ω Emf (E) = 12.0 V internal resistance( r ) = 0.015 Ω

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Q: What are the expected readings of the ammeter and voltmeterfor the circuit in Figure P18.65?

A: Consider the circuit diagram for the nodal analysis. Consider the potential at node A be V.

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A: R2 and R3 are in paralllel, soR23=2.80 Ω7.00 Ω2.80 Ω+7.00 Ω=2.0 Ω R23 and R4 are in paralllel,…

Q: A battery with an emf of 13.2 V has a terminal voltage of 12.8 V when the current is 3.16 A. HINT…

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A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

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Q: in the circuit emf's and resistances of the resistors are given es E1=12V, E2=36V and…

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Q: In figure, R1 = 100 ohms , R2 = R3 = 50.0 ohms , R4 = 75.0 ohms , and the ideal battery has emf V =…

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Q: Q11. A 16.0V emf automobile battery has a terminal voltage of 12.O V when being charged by a current…

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Q: 4) A battery with unknown emf (ɛ) and internal resistance (r) is connected to a circuit that…

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