UPPSC AE Paper-2 Quiz-4

What is the minimized expression of

Thermal runway of a thyristor occurs because-

A 200 V DC-DC Buck converter is turned ON for 20 μsec and turned off for 30 μsec. The output voltage will be-

the stator mmf wave in a 3-ϕ, 4 pole, 50 Hz induction motor is found to have fundamental, 5^th and 7^th harmonic component waves. The rotating field due to these harmonics rotates respectively at

The logic circuit shown in the figure can be minimized to

Match the list

The residual magnetism of a self-excited dc generator is last. To build up its emf again.

Read the following Assembly Language Program Segment of 8085 microprocessor:

LXI H, 2501H

MOV A,L

ORI FOH

MOV L,A

MOV A,H

ANI FOH

MOV H,A

HLT

What are the contents of A,H and L registers after executing the above set of instructions in sequence?

A modulating signal of frequency f_m with amplitude A_m is modulated with carrier with frequency f_c and amplitude A_c, resultant AM wave is shown below

What is the instantaneous amplitude of envelope of the above wave (if amplitude sensitivity of the modulator is 1/A_c)

What is the RST for the TRAP and what is address of it?