tsl156 - Electric current: E -Ir-IR = 0 I = E R + r Power...

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Impedance Matching A battery providing an emf E with internal resistance r is connected to an external resistor of resistance R as shown. For what value of R does the battery deliver the maximum power to the external resistor?
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Unformatted text preview: Electric current: E -Ir-IR = 0 I = E R + r Power delivered to external resistor: P = I 2 R = E 2 R ( R + r ) 2 Condition for maximum power: dP dR = 0 R = r R r I tsl156 p.1/1...
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