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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

Definition of a capacitance in mosfet?

Capacitance in mosfet is of three types:

gate capacitance

diffusion capacitance

routing capacitance

Gate capacitance: limits the speed of the device t which it can be operated

Diffusion capacitance: It is the capacitance due to charge carriers between drain and source.

Routing capacitance: It is the capacitance of the metal which is deposited on the top of oxide layer.

How do you draw Nand gates to function to like an And gate?

  1. pass the inputs through an nand gate and again pass them through inverter,which is again formed by an nand gate

Why do satellites use microwave frequencies?

Microwaves travel in a straight line making them easy to send and receive.

What is the purpose of isolation transformer?

An isolation transformer (or more commonly, amplifier) reduces noise in the system from the power source. This is especially necessary in medical applications where the signals that are being read are very tiny and even a small amount of noise can disrupt a signal and make it unreadable.

How long do 2 AA energiser batteries last in a 1.5 volt weather station?

It is not possible to give an answer to this question without much more information. The information given (e.g. 1.5 volt weather radio) is unrelated to battery life.

What tools are used to perform PCB etching at home?

The tools that are used to perform the process of PCB etching when done at home are things such as Muratic Acid, Hydrogen Peroxide, a laser printer, PCB drill bits, quality magazine pages, a one ounce copper clad, and lacquer thinner.

Why do you say cathode rays are electrons?

Because -- they are?

Or, more specifically, because the particles within cathode rays act exactly like electrons. They either ARE electrons or they do a REAL good job of imitating them.

What is the Use of preset in flip flops?

preset is an asynchronus i/p for flipflop. so it is not depending on the clock signal. so if i keep preset high in any flipflip it will gives me the o/p as high. but when i use the normal i/p in the flipflop it will give the at the edge of the fliplop..

Can a electronics engineers of diploma can go in aeronautics for degree?

mech. engg is reqired 4 aeronotics...........chek the eligibilty criteria in coleges

Why power diode has more power ratings?

It will be dissipating more power than a small signal diode.

What is a amp capacitor?

In simplest terms it is a power reserve. It stores power and releases it very quickly when your amplifier needs it, such as to deal with a large/sudden amount of bass.

Voltage current relation in passive circuit?

in passive circuit it depends on the type of load 1. if the load is purely resistive the voltage and current will be in phase 2.if the load is purely inductive the current lags the voltage by 90 dgree 3.if the load is purely capacitive the currents leads the voltage by 90 degree

What is quasi integration?

With quasi-integration, a firm internally produces less than half of its own requirements and buys the rest from outside suppliers.

True or false the first computers to use the integrated circuit were known as third-generation computers?

True.

Some of these computers used hybrid integrated circuits (e.g. IBM System/360) and some used monolithic integrated circuits (e.g. Apollo Guidance Computer, Minuteman II Guidance Computer)

What are Electronic Communications Networks?

Electronic Communications Networks (ECNs) are alternative trading systems that function much like stock exchanges--collecting, displaying, and automatically executing customer orders.

Where are hitachi TVs made?

Hitachi used to be made in Japan, but it is now made in China.

What is the difference between emitter and conductor?

A: BIG DIFFERENCE emitting is the study of electronics conduction is the study of current flow

Why thermocouple voltmeter is connected across shunt resistance and electronic voltmeter across capacitor?

There is no such a thing as a thermocouple volt meter. A analogue or digital millivolt meter or volt meter is connected across a shunt or parallel with the shunt to measure the current through the resistor. Say the resistor value = 1 Ohm, then by using the Ohm law formula to calculate the current, say the voltage (voltage drop), read on the volt meter is 1.5 Volt that is R*V = A that is, 1Ω*1.5V = 1.5 Amp.

Any type of DC volt meter, analogue or digital can be used to measure the voltage across a capacitor if the value of the capacitor is large enough that reading will be true RMS. as long as the supply current (EMF Power) are larger than the load current.