A black box with a circuit in it is connected to a variable resistor. An ideal ammeter

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A black box with a circuit in it is connected to a variable resistor. An ideal ammeter (with zero resistance) and an ideal voltmeter (with infinite resistance) are used to measure current and voltage as shown in Fig. 4.143. The result are shown in the table below.
A black box with a circuit in it is connected

(a) Find i when R = 4 (
(b) Determine the maximum power from the box

A black box with a circuit in it is connected
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Fundamentals Of Electric Circuits

ISBN: 9780073301150

3rd Edition

Authors: Matthew Sadiku, Charles Alexander

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