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ISRO EC Quiz - 1

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Question 1

A circuit consists of two clocked JK flip-flops connected as follows Description: F:\GradeStack Courses\GATE Tests (Sent by Ravi)\GATE-ME-20-April\GATE-IES-EC-Digital=Electronics-Circuits_files\image407.png and Description: F:\GradeStack Courses\GATE Tests (Sent by Ravi)\GATE-ME-20-April\GATE-IES-EC-Digital=Electronics-Circuits_files\image408.png. Each flip-flop receives the clock input simultaneously. The circuit acts as a

Question 2

A fibre-optic cable has the indices of refraction of core of 1.6 and of cladding of 1.4. For an angle of incidence 700, the angle of return light ray will be

Question 3

Consider the following RC circuit. The capacitor has an initial charge q0 such that it opposes the flow of charging current:

The response of the circuit i(t) will be

Question 4

A bandwidth of 10 kHz is required for AM system. If the lowest frequency component in the modulated signal is 555 kHz, carrier frequency in kHz is

Question 5

The open-loop transfer function of a unity feedback control system is The closed-loop transfer function will have poles at.

Question 6

What is the maximum signal propagation time for a geosynchronous satellite transmission system?

Question 7

A regulated power supply, shown in figure below has an unregulated input (UR) of 15 Volts and generates a regulated output Vout. Use the component values shown in the figure.

In the figure above, the ground has been shown by the symbol.
The power dissipation across the transistor Q1 shown in the figure is:

Question 8

For no reflection condition a vertically polarized wave should be incident at the interface between two dielectrics having , with an incident angle of
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Apr 22ESE & GATE EC