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In which type of transistor configuration is there no phase difference between the input signal voltage and the output voltage?

1. In a common base transistor configuration, the input and output voltages are in phase.
2. In a common emitter transistor configuration, the input and output voltages are in phase.
3. In a common collector transistor configuration, the input and output voltages are in phase.
4. Radio waves with constant amplitude can be generated using an oscillator with suitable feedback.

Correct answer: In a common base transistor configuration, the input and output voltages are in phase.

Solution

In a common base transistor circuit, the output voltage is in phase with the input signal voltage because there is no phase inversion. This is a characteristic of the common base configuration.

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