A common-emitter circuit has an input...

Question 1 / 205eccefa5bacbc34ba4d48672

Question 1 of 205eccefa5bacbc34ba4d48672

A common-emitter circuit has an input voltage of 0.1 volt, an output voltage of 2.0 volts, an input current of 0.5 milliamps, and an output current of 10 milliamps. What is the power gain?

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Question 1 of 20

5eccefa5bacbc34ba4d48672

A common-emitter circuit has an input voltage of 0.1 volt, an output voltage of 2.0 volts, an input current of 0.5 milliamps, and an output current of 10 milliamps. What is the power gain?

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🔍 Key Concepts

• Power gain compares output power to input power • Power is calculated from voltage × current for each side of the circuit • Careful attention to unit conversions (milliamps to amps)

💭 Think About

• How do you calculate input power using the given input voltage and input current? • How do you calculate output power using the given output voltage and output current? • Once you have both powers, how do you form the ratio that represents gain?

✅ Before You Answer

• Convert milliamps (mA) to amps (A) before multiplying by volts • Compute input power and output power separately before comparing them • Make sure the final gain is dimensionless (just a number, no units)

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Question 1 of 20

A common-emitter circuit has an input voltage of 0.1 volt, an output voltage of 2.0 volts, an input current of 0.5 milliamps, and an output current of 10 milliamps. What is the power gain?

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