(A) Above 20 MHz
(B) Below 20 KHz
(C) Above 4.5 MHz
(D) Below 4.5 MHz
Answer: (D) Below 4.5 MHz
Analog video signals have their spectra in the range of below 4.5 MHz.
Category: Electronics MCQs
In a control block diagram, signals are represented by:
(A) No symbols, just their letters
(B) Boxes
(C) Directed lines
(D) Arrows
Answer: (C) Directed lines
In a control block diagram, signals are represented by directed lines.
In digital communication, Manchester encoding is used for _______ strengthening the signal.
(A) Reduce complexity
(B) Clock recovery
(C) Both A and B
(D) None of these
Answer: (D) None of these
A Silicon controlled rectifier is a:
(A) Voltage controlled device
(B) Current controlled device
(C) Bilateral device
(D) None of these
Answer: (B) Current controlled device
A Silicon controlled rectifier is a current controlled device.
The force that appears as the result of the interaction between two moving charges is known as:
(A) Gravitational force
(B) Magnetic force
(C) Induced force
(D) Electro static force
Answer: (B) Magnetic force
The force that appears as the result of the interaction between two moving charges is known as magnetic force.