Cameroon Baccalauréat Série F2 Practice Questions - Cameroon Baccalauréat Technique Série F2 (Électronique) Exam

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What is the primary function of a voltage follower (suiveur de tension / buffer amplifier) with $A_v = 1$ in an electronic circuit?

Impedance matching: provides very high input impedance and very low output impedance to prevent signal attenuation from loading effects Voltage amplification to boost millivolt signals to 100 volts Phase shifting by exactly 90 degrees to generate quadrature signals Rectifying AC signals into pulsating DC current

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Impedance matching: provides very high input impedance and very low output impedance to prevent signal attenuation from loading effects

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