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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

When is the voltage gain and power gain are equal?

The voltage gain and power gain are equal when the load impedance matches the source impedance, and the voltage gain is equal to one (0 dB). This typically occurs in applications where both the input and output circuits have the same resistive load, allowing for maximum power transfer according to the maximum power transfer theorem. In this scenario, any increase in voltage gain directly translates to an equivalent increase in power gain, leading to equality between the two.

Why current and voltages are in phase in resistor?

1) in inductor there is generation of magnetic field due to flow of current . so there is phase difference in voltage and current .

2)in capacitor there is storage of charges. there is phase diff.

3)But in case of resistor there is no such things are happend . it is only a power dissipating element.therefor there is no phase difference between current and voltage.

How is automatic gain control bias voltage developed in a valve superhet radio reciver circuit?

The signal is changed to dc in the AGC circuit to change the gain. A weak signal

will increase gain.

What is the flow of charges between two objects called?

A flow of charge is called a current. It is measured in coulombs per second per amperes.

Why does less current run through a circuit when there are more loads?

This happens only in pure series circuits, due to increased resistance.

What is Course Load?

The number of courses, total credit hours, for one student for an individual semester.

How do i know what wires to connect together on an ac transformer?

All transformers are AC. Your question also does not contain enough information. If it is a multi-tap transformer, the wiring will be unique to the manufacturer but is very often indicated on a label or printed onto the former or case of the transformer. If it isn't a muti-tap transformer, no wires should be connected together, or you have worded the question very badly.

What is the LSB input of a 7 segment decoder?

It all depends. You need 3 bits to get 8 potential States.

000

001

010

011

100

101

110

111

From top to bottom this counts from 0 to 7 in binary. In this example, the LSB for the sequence above would be 0, 1, 0, 1, 0, 1, 0 and 1. You really have to look at the overall decoding scheme. If you had a device with 7 inputs then you could assign each input to a specific segment. Depends on what you have to amswer your question precisely.

How many classes of diffraction?

fresnel diffraction and fraunhoffer diffractions

Why is collector current slightly less than emitter?

The percentage of doping in emitter is higher than collector region.hence large current is flow to emitter than collector.

How much power is produced by 500mA of current through 4.7kΩ resistor?

1,175 watts. Which isn't very feasible

As it infers a voltage of 2350 Volts across the resistor.

Pls recheck you numbers and resubmit

In a series circuit each device that is added to circuit decreases the?

Ohm's Law answers your question. Voltage = Current x Resistance. In a series circuit you are in effect adding resistance. If the Voltage remains constant then the answer is obvious looking at the equation above.

What does circuit mean in a clock?

In the context of a clock, a "circuit" refers to the electronic pathway that enables the clock's components to function together. This includes the connections between the power source, timing mechanism, and display elements. The circuit ensures that signals are transmitted correctly, allowing the clock to keep accurate time and display it properly. Essentially, it forms the backbone of the clock's operation.

What pressure or force that causes current flow through a conductor is caleed?

The pressure or force causing current to flow through a conductor is called voltage.

What is the history of the electric circuit?

the history of the electric circuit is that the person who made it his name is jack kilby but the history is that the electric circuit was one of the easiest way was to make the electric circuit when the electricity went out.

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