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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 the frequency of ripple components in the output of capacitor filter?
It depends on whether or not it is a half wave or full wave rectifier. For a single phase 60 Hz rectifier, a half wave rectifier will be 60 Hz while a full wave rectifier will be 120 Hz. A three phase full wave rectifier will be 360 Hz.
How vacuum tubes do not obey ohms law in circuit design?
In point of fact, vacuum tubes do obey Ohm's law. Everything electrical obeys Ohm's law. The reason vacuum tubes don't appear to obey the law is that not every consideration takes into account the fact that vacuum tubs have dynamicresistance. Ohm's law, as applied to "pure" ohmic resistors, requires constant resistance, which no material, no matter how good, exhibits. In the real world, you have to consider that resistance can vary along with voltage and current, and this "complicates" things.
What is advantages and Disadvantages of CNN?
- On an environmental note, LPG is a cleaner burning fuel, producing fewer carbon emissions than other fossil fuels available in non mains gas areas. It emits 11.7% less CO2 per kWh than heating oil
- LPG is cheaper to install than heating oil too. On average, LPG installations are £2,500 cheaper (based on a 3 bedroom house)
- LPG can also be used in conjunction with renewable products
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- There are a large number of LPG qualified installers across the country and Calor also have their own dedicated workforce of LPG installers, CalorForce
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What type of meter would be connected on both sides of a resistor in a circuit?
ammeter in series at any side as required since it is bilateral and voltmeter is connected in parallel to measure voltage drop across it
What does a pre-set resistor do in a circuit?
A preset resistor is used in some circuits to change the resistance. The preset resistor enables the circuit to be more or less sensitive thereby altering the resistance.
What is the term used when digital values are converted to create an analog sound?
When digital values are converted to create an analog sound, the term used is Digital-to-Analog converter.
Current will be decreased because of the resistance of the ammeter added to the circuit's resistance. In other words total resistance increases.
How does keyphasor probe work?
A Keyphasor signal is a once-per-turn or multiple-event-per-turn pulse from a rotating shaft or gear used to provide a precise timing measurement.
The module receives input signals from proximity probes or magnetic pickups and
converts the signals to digital Keyphasor signals that indicate when the
Keyphasor mark on the shaft coincides with the Keyphasor transducer. T
What is radiation pattern for an antenna?
Radiation pattern is just a map of how the strength of the signal varies around (transmitting) antennas.
For some, like a simple whip antenna, the patttern too is quite simple. For directional antennas they can be quite complicated.
All resistances will emit heat energy when a current flows. The heat production rate (or power) can be found by any of these formulas:
Power = Current * Voltage
Power = Current2 * Resistance
Power = Voltage2 / Resistance.
Power is given in Watts when Current is in Amps, Voltage in Volts, and Resistance in Ohms.
What components are placed in an electrical circuit to control the amount of resistance in circuit?
resistors, variable potentiometers
Ohm's law: Current is voltage divided by resistance.
50 volts divided by 5 ohms = 10 amperes.
How much electricity does it take to light up a street lamp?
Depends on the type of lamp.
- Mercury vapor
- High Pressure Sodium
- Low Pressure Sodium
- etc.
Why voltage gain of a common collecter amplifier is 1?
actually it is slightly less than 1, due to base-emitter forward bias voltage.
How does using a transistor with a different β affect the operation of the common emitter amplifier?
the amplification factor is a function of β. Higher β causes a higher amplification.
What happens to current in a parellel circuit if a resistor load increases?
Your question needs rephrasing; as it stands, it makes no sense.
an H5 Inverter is an inverter with a topology with a virtual negative bus, so that it does not need have a negatively (or positively if so chosen) grounded conductor. H stands for H-Bridge, and the number 5 is representative of the number of switches it requires or IGBTs(Insulated Gate Bi-Polar Transistors) Basicially just low switching loss transistors. Developed by Toshiba. You will find that the H5 inverter uses what is called SPWM, or sinusoidal pulse width modulation, which is the switching strategy for the IGBTs.
