Part A What is the resistance R of the resistor connected in series with the bat

Question

Part A

What is the resistance R of the resistor connected in series with the battery if the current through the circuit is 0.100 A?

Express your answer with the appropriate units.

97?

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The battery in (Figure 1) has internal resistance Rbatt = 25.0 ? and maintains an emf E = 20.0 V.

Part A

What is the resistance R of the resistor connected in series with the battery if the current through the circuit is 0.100 A?

Express your answer with the appropriate units.

97?

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Incorrect; Try Again; 4 attempts remaining

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Explanation / Answer

I = E/Req

E = 20V

Req= Rbat + R ( as both are in series)

Req = 25 + R

20/(25 + R) = 0.1

=> 25 + R = 200

=> R = 175 Ohm

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