Mathematics · Electrical Networks
A voltage amplifier has a voltage gain of 20 and an input resistance of 1 kΩ. If the input signal is 0.1 V, what are the output voltage and the current drawn from the input signal source?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Output voltage = 5 V, Input current = 0.1 mA
- 2Output voltage = 2 V, Input current = 1 mA
- 3Output voltage = 2 V, Input current = 3 mA
- 4Output voltage = 2 V, Input current = 0.1 mA✓
Correct answer
Output voltage = 2 V, Input current = 0.1 mA
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