4 of 13

D-All of the above
Correct Answer:- Option-é
Question25:-In low frequency transformers the core materials are generally soft silicon steel because
‘AcThey are having large hysteresis loop area
B:-They are having least coercivity
C:They are having high coercivity
Ds-High retentivity
Correct Answer:- Option ®
Question26:-the expected energy of electrons at absolute zero is known as
‘Ac Workfunetion
B:-Fermi evel energy
CeEmission energy
D:-Forbidden energy
Correct Answer:- Option ®
Question27:-The fist storage location of stack operation in 8051 microcontroller is
۸:00
B-01H
078
D-08H
Correct Answer:- Option-D
Question28:-After the execution ofthe instruction "move A, 20H"
‘A-Accumulator content is the content of the memory location 20H
B:-Accumulator content is 20H
C-The content of accumulator moves to the memory location 20 H
D:-The stack pointer points to the memory location 20H
Correct Answer:- Option-é
Question29:-MOV A, @RO is
‘Ac Register addressing
Bs-Indexed addressing
C-Register indirect addressing
Ds-Immediate addressing
Correct Answer:- Option-C
Question30:-The one and only register inside the CPU holds 16 bit address of the instructions is
۸78
B:-Program counter
Stack pointer
D-Instruction decoder
Correct Answer:- Option ®
Question31:-After the execution ofthe following instructions,
mov SP, #08H
MOV Ri, #12H
MOV Ra, #0F3H
Push 1
Push &
The stack pointer points to which location?
കാ
B:-09H
‏مد‎
‎ലേ
‎Correct Answer:- Option-D
Question32:-The Unit of modulation index is

AcUnitless