Question

A battery with EMF 90.0 V has internal resistance Rb = 8.95 Ω . Part A...

A battery with EMF 90.0 V has internal resistance Rb = 8.95 Ω .

Part A

What is the reading Vv of a voltmeter having total resistance Rv = 440 Ω when it is placed across the terminals of the battery?

Vv =

88.2

V

Part B

What is the maximum value that the ratio Rb/Rv may have if the percent error in the reading of the EMF of a battery is not to exceed 5.00 % ?

Express your answer with three significant figures.

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448.95 44 8.95 146.95 Pa oncenen 0 o o05 o S

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