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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
What is ripple frequency of 50 hz ac full supply?
you can't have half wave rectified polyphase AC power, unless you are using only one of the phases. however with only one diode from each phase of three 50 Hz phases the ripple frequency is 150 Hz, with two making a full three phase bridge the ripple frequency is 300 Hz. perhaps that was what you meant.
What is vce and ie of a transistor?
A: Vce is the voltage across the transistor . Ie is the emitter current. Ico is the collector current with the base open. Or really the leakage.
What is full scale deflection?
Full Scale Deflection is equal to the max value on a scale or meter. If a thermometer reads from -20 degrees to +100 degrees, the full scale deflection = 100 degrees and the range = 120 degrees
What is the reliable smoothing capacitor for rectified 24VDC?
FOR A 24VDC it is best to install a 50v breakdown capacitor to ensure reliability
Why is the series arrangement not used for domestic circuits?
In series, each device creates a voltage drop related to the current and impedence of the device, therefore, the voltage for the devices in the circuit are not the same.
Addition:
Also, in a series circuit, if one device fails, all others in the circuit would also "turn off" - think older strands of Christmas lights.
Lets say for example that all the lights in your house were in a series circuit. When you turned the circuit on, all the lights would come on, but when you turn the switch off, all the lights would also go off (possibly useful when leaving for the day or going to bed). Now, one light bulb blows out...every light in the house would go out, leaving you to try replacing every light in the house until you found the correct one...in the dark.
- A switching power converter technology in which a resonant tank circuit operating at high frequencies is used to transfer energy to the output. Typically found in higher power (>100W) DC/DC applications.
sending voltage means voltage applied to source side.....
How do you make a circuit so the lights can be turned on and off separatley?
To design a circuit so that lights can be turned on and off separately, we connect the circuit in parallel.
What are the frequency limits for carrier signals used by other AM stations in that area?
No higher than 1090 kHz and no lower than 1110 kHz
What is the resistor color code and how is it used to identify and select resistors?
The resistor color code use to help to identify the resistance of the resistor. There are four color in the resistor that help to identify the resistance of the resistor. The first and second color represent the numerical value of the resistor. The third color represent the multiplier. The four color represent the tolerance.
How is the channel used in the digital communucation system?
The channel used in a digital communication system is used to convey an information signal. A channel has certain capacity for putting in information that is measured by bandwidth in Hz or data rate.
The sampling rate must be at least double the highest frequency component of the
modulating signal in order to avoid frequency aliasing.
Which transformer raises the voltage high and lower the current for transmission?
A step-up transformer.
Pulse Width Modulation generator circuit is mainly used in controlling DC motors in connection with the constuction of different kinds of robotics.It basically tests a robots motor funtion, which can be done before the robot is built.
What is pre-emphasis and de-emphasis in FM?
In FM, the effect of noise is more on higher frequencies when compared with low frequencies. Therefore in order to have high signal-to-noise ratio(low noise), the high frequencies are amplified at the transmitter side and for compensation deemphasis(decreasing the amplitude of those boosted frequencies ) is done at receiver.
How do you use capacitor in a sentence?
Capacitor is a noun, as in a person, place or thing. It is an electrical device. Ex: The capacitor failed and has to be replaced.
Why do you want to get into a IT company being an non IT student?
A person may want to get into an IT company because they have a general interest in the company. Also, they may be interested in joining the company because they are planning on switching majors.
Should you worry about capacitor lead length in a circuit?
Capacitor lead length is a consideration in a circuit when the frequency involved is sufficient the make the parasitic capacitance and inductance of the leads important.
conducts
What is advantage of lower bandwidth?
The reason for using lower bandwidth is that not all Internet users are able to download and use programs, videos, etc., with high bandwidth. In some cases the higher bandwidth files become corrupted or they stretch the resources of satellite and dial-up systems. Operating at a lower bandwidth provides an advantage because it solves such problems.
