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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

How can tell the resistance of a resistor?

Resistors are electronic segments. They are shading coded with stripes to uncover their resistance esteem measured in ohms and additionally their assembling resilience. There are two sorts of shading codes, four band and five band. To begin with, the four band. Discover the resilience band, commonly it will be gold. Beginning from the flip side, distinguish the first band ,record the number connected with that shading; for this situation accept the shading is Blue, in this way the number is 6. here accept it is red, so record a "2" beside the six. Presently read the third or "multiplier" band and record that number of zeros. In the event that the "multiplier" band is Black don't record any zeros. On the off chance that the "multiplier" band is Gold move the decimal point one to one side.

In the event that the resistor has one more band past the resilience band it is a quality band. Perused the number as the '% Failure rate per 1000 hour'. This is evaluated accepting full wattage being connected to the resistors.

1% resistors have three groups to peruse digits to one side of the multiplier. They have an alternate temperature coefficient keeping in mind the end goal to give the 1% resilience. Should you experience a resistor and don't have a clue about the shading codes, utilize this edge page above to decide its resistance esteem.

What is the selection criteria for resistors?

Following Points needs to be considered

1. Value

2. Wattage (twice the calculated one recommended)

3. Tolerance

4. Resistor Material

5. PC board assembly

What is the name for a positively charged conductor through which electrons flow into a device?

Anode

The name for a positive charge conductor through which electrons flow into a device is called the life conductor.

What is subscriber identity module in gsm?

SIM - Subscriber Identity ModuleThe SIM provides security and authentication of the subscriber so that the user has access to the subscribed services. The SIM card contains an International Mobile Subscriber Identity, used to identify the subscriber to the system.

Brahmajyothi

What is sweep time in an oscilloscope?

Sweep time in an oscilloscope refers to the duration it takes for the horizontal sweep of the display to cover one complete cycle of the input signal. It is typically measured in seconds per division, allowing users to adjust how quickly the oscilloscope scans the signal over time. A shorter sweep time provides a more detailed view of rapid signal changes, while a longer sweep time can display slower variations more clearly. Properly setting the sweep time is crucial for accurately analyzing signal behavior.

Are subthalamopallidal fibers and striatopallidal fibers the same thing?

No, they are not the same, but they share a common target (the pallidum).

Subthalamopallidal fibers project from the subthalamic nucleus to the globus pallidus.

Striatopallidal fibers project from the striatum into the globus pallidus.

Which of Voltage drop is the main consideration while designing?

The size of the wire is the main factor when dealing with voltage drop. The idea is to maintain the voltage and a specific amperage at the load end of the circuit.

What has a 555 timer IC in it so I can desolder it and use it?

The LM555 is a highly stable device for generating accurate time delays or oscillation. Additional terminals are provided for triggering or resetting if desired. In the time delay mode of operation, the time is precisely controlled by one external resistor and capacitor. For astable operation as an oscillator,

the free running frequency and duty cycle are accurately controlled with two external resistors and one capacitor. The circuit may be triggered and reset on falling waveforms, and the output circuit can source or sink up to 200mA or drive TTL circuits.

There is little point in desoldering one since they are very cheap to buy since the chip is nearly thirty years old.

NE/SA/SE555/SE555C Timer circuits are all over the net.

What equalizer does in communication system?

In a communication system, an equalizer is used to mitigate the effects of distortion and interference that can occur during signal transmission. It works by adjusting the amplitude and phase of the received signal to compensate for the channel's characteristics, thereby improving signal quality and reducing bit error rates. Equalizers can be implemented in both analog and digital forms, and they are crucial for enhancing the performance of various communication systems, including wireless and broadband networks.

What are grid station?

Grid stations are the station which reduce the High Voltage to Low Voltage and increase the Current, the Current is Low and Voltage is High at the Generation Plant to reduce the energy losses during transmission of Electricity.

What converts a binary signal to analog?

an encoder is used to convert the binary signals into analog signals. the binary signals are fed to encoder section. then these signals are get converted into its equivalent analog signals.

Binary DAC.

Any logical function can be implemented with only NOR gates?

Yes.
_____
A----|_____NOR------Q

This is an inverter. A NOR gate is an OR gate with an inverter on the end, so adding the above configuration after another NOR gate would give you an OR gate.

__
A----|__NOR---\
__ NOR------Q
B----|__NOR---/

This is an AND gate. By adding the inverter, you can get a NAND gate.

A____
|__
_|__NOR----------------\
| | \
| |___ NOR----Q
B __| |___NOR-----\ /
|_____ NOR --/
|_____NOR-----/

By combining an AND gate, an OR gate, and a NAND gate, and canceling out a couple of inverters, you get this operator, which is a XOR gate.

The formatting here is messed up, but if you go to the "improve answer" link, you can see the circuits.

What was the threshold voltage in activity 1?

The threshold voltage in Activity 1 was the voltage required to trigger an action potential in the neuron, usually around -55mV. This voltage level is necessary to open voltage-gated sodium channels and initiate the depolarization phase of the action potential.

What are the materials that don't follow ohm's law called?

Everything follows ohms law. that's why it's called a law. There is no get out of jail free card when it comes to ohm's law.

The full law even takes into effect radiative power, or power transferred through antennas.

Which device use for reduce distortion in sound?

This can be done with an Equalizer.

ANSWER: Not an equalizer for sure not unless the distortion is frequency related.

What do you mean by percentage regulation in rectifiers?

A: Rectifier do not provide any regulation they merely rectify the AC. The percent regulation if any is a function of the capacitor filters and the load impressed on them

How do you find the voltage at a point in a circuit with respect to a negative voltage?

First of all, 'voltage' means potential difference -and you cannot have a potential difference 'at a point'. Similarly, you cannot have a 'negative' potential difference, so it doesn't make sense to talk about a 'negative voltage'.

Your question, therefore, should read: 'How do you find the potential at a point in a circuit with respect to a negative potential?'

The answer is that you simply connect a voltmeter between the two points. The reading will give you the value of the potential. If it reads upscale, then it'll be positive; if it reads downscale, then it will be negative (i.e. even more negative tan the reference potential).