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ISRO Quiz 2

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Question 1

The following sequence of instructions is executed by an 8085 microprocessor:
1000 LXI SP, 27FF
1003 CALL 1006
1006 POP H
The contents of the stack pointer (SP) and the HL register pair on completion of execution of these instructions are.

Question 2

The force on a point charge + q kept at a distance d from the surface of an infinite grounded metal plate in a medium of permittivity

Question 3

A coil of inductance 2 H and resistance

is connected to a 10 V battery with negligible internal resistance. The amount of energy stored in the magnetic field is

Question 4

Express switching function f(ABC)= B'+C' in terms of min term.

Question 5

For the operational amp circuit shown in the circuit below. Find the values of V₀ & I_t respectively. Assume Vᵧ=0.7V for each diode & op-amp is ideal.

Question 6

For an 8 feet (2.4 m) parabolic disk antenna operating at 4 GHz, the minimum distance required for far field measurement is closest to

Question 7

Noise with double-sided power spectral density of K over all frequencies is passed through a RC low pass filter with 3dB cut-off frequency of f_c. The noise power at the filter output is

Question 8

A Gap has on indirect band gap of 2.26 eV at temperature of 300K. If produces light with a wavelength (λ) of ……………… μm.

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ESE & GATE EC General

Mar 6ESE & GATE EC