GATE PH 2017 Paper 1 — page 18

Questions 52–54 of 65. Imported answers require review unless explicitly marked reviewed.

Paper practice 65 questionsPage 18 of 22

For the transistor amplifier circuit shown below with

, and

. Neglecting the emitter diode resistance, the input impedance of the amplifier looking into the base for small ac signal is ________ k

. (up to two decimal places).

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Consider an ideal operational amplifier as shown in the figure below with

. For an applied input voltage

, the current passing through

is ________

. (up to two decimal places).

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Consider the differential equation

. If

is ________. (up to two decimal places).

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2017 · Paper 1