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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
Since the total capacitance for capacitors in parallel is the sum of the individual capacitances. I'm sure that you can work it out for yourself!
When the voltage is in volts and the current is in amperes electric power is expressed in watts?
The formula that you are expressing is Watts = Amps x Volts. There are two other ways to express watts.
W = E (squared)/R and
W = Amps (squared)/R.
R is the resistance of a device in ohms.
Why output is constant in saturation region of the transistor in common emitter configuration?
Check the curves to see the behavior. What happens is that the semiconductor material gets saturated with the base current. You cannot get more conductivity. Increasing the base current will not help. Typically a voltage of 0.2 to 0.3 Volt remains.
What do you expect of ohmic resistance as you increase or reduce temperature?
It depends. In general, pure metal conductors increase in resistance as their temperature increases; some alloys (e.g. constantan) are manufactured to maintain an approximately-constant resistance for changes in temperature. Materials such as carbon (and most insulators) exhibit a fall in resistance as their temperatures increase.
Can you use a capacitor instead of zener diode in biased clipping circuit?
No.
The purpose of the zener diode is to clip (turn on) at a certain voltage. A capacitor will not exhibit this behavior.
How do you do the PSP led light mod?
this will help you do exactly that just click this link: http://www.llamma.com/PSP/psp_led_lighted_trigger_buttons.htm or copy/paste to browser your welcome!!
Sound pressure hits a microphone's diaphragm and the microphone converts this acoustic pressure wave to a audio voltage wave. The microphone's output is called sensitivity of the mic.. Scroll down to related links and look at "Microphone sensitivity conversion - transfer factor".
Examples of the open loop control system?
1. The washing machine ;
2. Light regulator;
3. Vacum cleaner;
4. An old Microwave oven;
5. Water tap;
6. Electric Oven;
7. Electric fan;
True
Library ieee;
use ieee.std_logic_1164.all;
entity v3to8dec is
port (g1, g2, g3: in std_logic; a : in std_logic_vector (2 downto 0);
y : out std_logic_vector (0 to 7) );
end v3to8dec;
architecture v3to8dec_a of v3to8dec is
signal y_s: std_logic_vector (0 to 7);
begin
with a select y_s <=
"10000000" when "000",
"01000000" when "001",
"00100000" when "010",
"00010000" when "011",
"00001000" when "100",
"00000100" when "101",
"00000010" when "110",
"00000001" when "111",
"00000000" when others;
Y <= y_s when (g1 and g2 and g3) = '1' else "00000000";
end v3to8dec_a;
Relation between transmitted power and range?
usually more power means more range. Now frequency come into play and obstacles to the transmission. there is no definite answer
The statement that current is equal to the vottage difference divided by the resistance is?
Ohm's law.
Can you bypass capacitor in line voltage?
Sure, depending on the type of circuit used, a cap may not be used at all. If you could provide some more detail as to the application, we could answer the question more accurately. In fact, a coil (or inductor) is more commonly used in 'line' voltages. It provides a 'stiffening' effect to help keep the line voltage at its desired value.
When did Michael Faraday invent electromagnetic?
Michael Faraday invented electromagnetic on 29TH of August 1831.
ADDED: He didn't "invent" it but discovered its principles.
What voltage can damage computer component?
As little as a 20V electrostatic discharge through some modern components will cause latent damage that could cause sudden failure months or years later.
How can you measure the temperature inside a nuclear reactor?
Temperature sensors are installed in nuclear reactors as part of the design. An array of thermocouple-based sensors is not uncommon.
How do you determine the bandwidth of a band reject filter?
How is the bandwidth of a band-reject filter determined
What is the current through a 1.5k resistor with voltage of 3V across it?
Two milliamperes.
Ohm's law: Current equals voltage divided by resistance.
What are the classifications of ASICs?
There are four basic classes of ASICs; each class has a different degree of customization of the chip. Full-custom, standard, semi-custom, and programmable logic devices.
How does a garage door motor know which direction to operate in if the door is only closed halfway?
The circuitry "remembers" the previous direction and reverses that direction.
What is positive and negative dc voltage?
They are opposites of each other. This refers to the direction of the electrical current is flowing. A battery right side up has +4.6 volts across it. Current is flowing out of the top and I to the bottom. Flip it upside down, now measured the same way you'll see -4.6 volts, meaning current if flowing into the top and out of the bottom.
Additional AnswerThere is no such thing as a 'positive' and 'negative' voltage if you are referring to 'positive' and 'negative' in the sense of polarity or charge. Voltage is simply another name for potential difference, and you cannot have a positively- or negatively-charged potential difference! Presumably, what your question should ask is "What is positive and negative potential?".
The potential at any point in a circuit is measured with respect to another point in the same circuit -often, this is earth (or ground). For example, a car battery's negative terminal is usually earthed to the vehicle's metal chassis, so anything connected directly to its positive terminal has a potentialof +12 V.
On the other hand, 'positive' and 'negative' can also refer to sense or direction, rather than polarity or charge. Used in this sense, you can apply these terms to potential difference or voltage. For example, if a second battery acts in the same direction as another battery, then its voltage is acting in the positive sense (or direction); if it is connected to oppose another battery, then its voltage is acting in the negative sense. Applying the terms 'positive' and 'negative', in this sense, to potential differences or voltages, is useful in various electrical theorems, such as Kirchhoff's.
