The input impedance ( $Z_{i}$ ) and the output impedance ( $Z_{0}$ ) of an ideal trans-conductance (voltage contolled current source) amplifier are

Z_{i} = \infty, Z_{0} = \infty

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Z_{i} = 0, Z_{0} = \infty

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Z_{i} = \infty, Z_{0} = 0

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Z_{i} = 0, Z_{0} = 0

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Solution

The correct option is A $Z_{i} = \infty, Z_{0} = \infty$
In a transconductance amplifier, both the input and output impedances are high.

$Z_{i} = \infty, Z_{0} = \infty$

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