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Electronics Engineering
Electronics Engineering is a branch of engineering that deals with practical applications of electronic components, devices, systems, or equipment. Electronics are devices that operate on low voltage sources, as in electron tubes, transistors, integrated circuits, and printed circuit boards and use electricity as part of its driving force.
24,372 Questions
Least Significant Bit. Least Significant Byte. (Depends on use.)
Do LCD TVs use cathode ray tubes?
Some early flat screen TVs used cathode ray tubes, but the flat faced tubes were harder to make and heaver than the older curved faced tubes. When newer designs (e.g. plasma, LCD, LED) came out that naturally produced flat screens and were lighter weight than cathode ray tubes, they rapidly made flat screen cathode ray tube TVs obsolete.
What the advantages of active and passive device?
An active device is any type of circuit component with the ability to electrically control electron flow (electricity controlling electricity). In order for a circuit to be properly called electronic, it must contain at least one active device
Can more than one resistor be used in a circuit?
Yes, more than one resistor can be used in a circuit. Resistors can be connected in series, where their resistances add up, or in parallel, where the total resistance decreases. This allows for greater control over the current and voltage levels within the circuit, enabling designers to achieve desired electrical characteristics. Using multiple resistors can also help in managing heat dissipation and improving circuit functionality.
What is stability of transistor?
Transistors need thermal stabilization because the operating point of a transistor junction, similar to a diode, is affected by temperature. In fact, this can cause thermal runaway, and device destruction, if the circuit design does not compensate for this.
Answer mostly correct but the operating point of a transistor must remain fixed as temperature varies whether going low or higher. that is mainly the concern about. not runaway that is caused by bad design.
What are composite signals why you needed?
In case of TV broad casting, the Video Signal is not transmitted alone, but it accompanied by a number of other signals or pulses, which help the exact reproduction of the picture at the receiving end. These pulses include Blanking Pulses, Synchronizing pulses and Equalizing pulses. A combination of Picture signal and other Controlling signal or pulses is called Composite Signal. Thus Composite Video Signal may consist of Following Parts.
- Picture information (Data)
- Blanking Pulses (Delay Pulses)
- Vertical and Horizontal Synchronizing Pulses (controlling Pulses)
Generally,
A Combination of Data and Other Controlling Signal is Called Composite Signal .
Inductive reactance is equal to capacitive reactance?
yes,they are equal at only one condition i.e. when the circuit containing R,L and C in series or in parallel behave as a purely resistive circuit. This condition occur only at resonance.
What is the advantage of opto-isolator?
An opto isolator is an electronic device that prevents high voltages from components in one side of a circuit from damaging or interfering with components on the other side of the same circuit.
Is there a magnetic field around current carrying conductors?
yes.magnetic field present around the conductor.
current and magnetic fields are inter related..
with current we can produce magnetic field and vice versa
How do you implement 8-bit comparator using two 4-bit comparators?
set the < , =, > as "010" and connect the lower bit that you want to compare to the first comparators and connects its output to the input of second comparator like this; connect the P<Q to < , and P=Q to = and P>Q = > (cascading input is checked for when P and Q are equal; the input from cascading input is set to the output "010"
What are the applications of CMOS?
cmos technology is used in low power applications in vlsi and also used in image processing.cmos inverter has many applications like oscillator,amplifier and also used in analog transmission,digital applications etc.,
What kind of material are in most conductors?
Most conductors contain metals. These provide the free electrons, which can pass a current.
What is the difference between conductivity and mobility?
conductivity and mobility both are directly propertional
Why light emitting diodes are good?
LED (light emitting diode) is an electronic component that generates light from the electrons flowing in one direction through it, in an electron circuit, possibly as part of a circuit board. In a circuit the light emission can be a short as a nanosecond. One or more LED's can be used to make light with a minimum of electricity. Modern applications are wide spread including optical sensor activators, calculator displays and automotive tail lights. LED's have come down in price and can last for tens of thousands of hours so have become an economical replacement for other lights in some applications.
Who is the father of electronics communication?
For wireless communication, undoubtedly Guglielmo Marconi, who invented the spark gap transmitter. Then for telegraphy, it has to be Samuel Morse. The telephone was invented by Alexander Graham Bell.
How many type of electric circuit?
There are basically two types of circuits: parallel and series. In a series circuit, current flows in one continuous straight path. In a parallel circuit, the current has more than one path to follow.
Answer
There are four categories of circuit, not two. These are 'series', 'parallel', 'series-parallel', and 'complex'. A 'complex circuit' describes any circuit not falling into the first three categories.
Why an inductor acts as a conductor?
Resistors and MOSFET/ transistors are two different animals, sory but
What is the effect of emitter resistance in common emitter amplifier?
The gain of a common-emitter amplifier is collector resistor divided by emitter resistor, or hFe, whichever is less. Since hFe depends on temperature, designing the amplifier to be dependent on resistance ratio makes it more stable. As such, the emitter resistance serves to stabilize the amplifier.
Solder is a metal ,specially alloyed to be used to fix or weld together other pieces of metal.
How to use it would depend on the application and the exact metals being used
According to Ohms law, which states that Resistance (R) = Voltage (V) / Current (I)
6 Ohms
