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a) Calculate the terminal voltage for a battery with an internal resistance of 0

ID: 1514213 • Letter: A

Question

a) Calculate the terminal voltage for a battery with an internal resistance of 0.800 and an emf of 8.50 V when the battery is connected in series with a 88.0- resistor. Express your answer to three significant figures and include the appropriate units. Vab=? b) Calculate the terminal voltage for a battery with an internal resistance of 0.800 and an emf of 8.50 V when the battery is connected in series with an 880- resistor. Express your answer to three significant figures and include the appropriate units. Vab=?

Explanation / Answer

a) current =Voltage/resistance =8.5/(88+0.8) =0.0957amp

terminal voltage =E-iR =8.5 - 0.0957*0.8 =8.42V

b)

current =Voltage/resistance =8.5/(880+0.8) =0.00965amp

terminal voltage =E-iR =8.5 - 0.00965*0.8 =8.49 V