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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 much work does a battery connected to a 21 ohm resistor perform in one minute?
That completely depends on the voltage of the battery.
The energy delivered by the battery and dissipated by the resistor in one minute will be
[ 60 x (Voltage of the battery)2 / 21 ] joules
A direct current is not what many people think it is. A direct currents happens inside the motherboard of a computer system and occurs when energy and data flows from the vc card located in the hard drive into the the floppy disk or pc disk in the modum. It also has the definition as being a quote from those who wroth an auto biography speaking about themselves in a later time. thanks for the help michael and i would like to give a big shout out to Prof. daniels at Stanford Universy. Good night L.A. and wake in your morning watching the today show with johnny hohn hohn
A disturbance sends ripples across water in a tub these ripples example of a?
wave front. radio waves do the same thing when emitted by a monopole antenna
The series input resistor and the feedback resistor.
How do input cost effect supply?
Input costs are the costs firms must pay in order for them to be able to present a product to a market. These can include land, capital and labour. If the supply is represented by an upward sloping curve on a supply-demand graph, input costs will influence how far to the left or right the entire curve will shift. This means that the cost of inputs will dictate the prices at which firms will be willing to sell different quantities of their product.
Should input costs increase, firms will want to supply less of each product at each price, so the entire curve shifts to the left. Should input costs decrease (a decrease in wage rates, for example) then the firm will be able to offer more of each product at each price, and so the entire supply curve will shift to the right.
A 20Hz signal must be sampled at a minimum of 40Hz to have a chance of sampling both peaks and to get a reasonable representation it must be sampled at a minimum of 100Hz.
For a sampling rate of 30Hz the Nyquist frequency is 15Hz and since 20Hz is above that it will generate the alias signal of 10Hz in the sampled data instead of the original signal of 20Hz. Therefore it is not possible to do what you ask.
Are LED lights explosion proof?
LEDs are not automatically explosion-proof.
It would depends on the design as a whole. what type of switch that's used, how well it's encased, amount of current running through it, etc.
Well, yes. But it isn't much needed as DC is already DC.
How do you link two Nintendo ds together to play against each other?
When playing a DS game, the two consoles connect by wireless (no cables). Two types of multiplayer game are available: where each player owns a copy of the game, or where only one person needs a copy. For the first type, turn each DS on with the game in, and choose multiplayer from the ingame menu. For the second type, the player with the game card starts their DS as above, while the other player(s) start their DS with no game inserted (or hold START), and press DS download play.
The Nintendo DS cannot be used to play Game Boy Advance games in multiplayer mode.
See http://www.mariosunshine.ch/consumer/systems/ds/multiplayer.jsp for more information
Does the physical size of a capacitor make a difference if the values are correct?
The only criteria governing capacitor size is; will it fit into the space on the circuit board.
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Capacitors produce a reactance that is measured in ohms - depending on the alternating frequency of the current flowing through them - and that reactance will produce heat.
So, if you are designing equipment that will use a capacitor - or are replacing a defective capacitor - you must take into account how much energy it will produce as heat, that will have to be conducted away, otherwise the capacitor will burn up! So you must never use a capacitor that is physically too small for the job!
The answer given above needs is partially correct in that it should also say that, as long as it will fit into the space available, you can use a capacitor of the same microfarad value that is physically bigger than the one that you are replacing but you should never use one that is physically smaller.
It is also important to use the correct type of capacitor: it may not be safe to replace a non-electrolytic type by an electrolytic one, for instance.
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Not all capacitors are used in printed circuit boards. A capacitor used for motor starting also has to be matched exactly when replacing, as it also is engineer designed to the characteristics of the motor.
What is the power dissipation for TTL?
power dissipation of a logic circuit is usually defined as the supply power required for the gate to operate with a 50% duty cycle at a specific frequency.
I=U/R so 30/2000=0.015 so 15 mA
What is a parity bit generator and checker?
Parity bit generator is the error that occures when digital codes are being transferred over channel from one point to other .
What is the difference between axiom and theorem?
The axioms are the initial assumptions. The theorems are derived, by logical reasoning, from the axioms - or from other, previously derived, theorems.
What is the voltage of 8051 microcontroller?
This question is literally impossible to answer without knowing a specific part number (and manufacturer which is usually easy to determine because it is based off the part number). The 8051 was first used in the IBM type computer as the keyboard controller to send key presses to the CPU. It has since become an architecture that appears in a number of other places. There are several manufacturers that produce low cost and low power microcontrollers based upon the 8051 with other peripherals included in the same package. Because there are numerous 8051 controllers, there is no one standard for connecting them to power for each may design their controller to meet their own design guidelines.
Older 8051 microcontrollers usually require a 5 V power supply.
Newer 8051 microcontrollers are more likely to require a 3.3 V power supply.
The only way to tell is to read the part number off the chip and look up the manufacturer's data sheets for that part number.
Fortunately, most data sheets are online these days.
TRX stands for TRANSMIT RECEIVER.
TRX has different combination depending on the user requirement.
1 trx has 8 TS out of which one is allocated for BCCH.Rest is used for voice trxmns and for data purpose.
What is a sine-cosine Encoder?
A Sine-Cosine Encoder is a position transducer using only two sensors, each 90 degrees out of phase with respect to each other, driving an up/down counter through appropriate logic. Since sine and cosine are 90 degrees out of phase with repect to each other, this technique is called sine-cosine encoding.
The computer mouse is an example of this technique.
First thing you need to do is calculate the Voltage across the 8 ohm resistor. As it is in parallel with the 1 & 3 ohm resistors in series that would be the voltage across those two. P = E^2 / R thus P x R = E^2; 2 watt x 8 ohms = E^2 = 4V Quick check: I = E / R = 4 / 8 = 0.5 A P = E x I = 4 x 0.5 = 2 watts Now Rt = 1 ohm + 3 ohms = 4 ohms Caclulate current in the series circuit: I = E / R = 4V / 4 ohms = 1A Now calaculate the power in the 3 ohm resistor: P = I^2 x R = 1 x 3 = 3 Watts. (NOTE: I am using the ^2 to show exponents, in this case it means squared)
What do you mean by buffer in micro processor?
A buffer is merely a temporary storage used in conjunction with computation.
What is logic for ground in digital electronics?
In some types of electronic design you may have Digital circuits also called Logic Circuits and Analog circuits. Each circuit may have separate power and ground lines. So you may see the notation on a schematic for Logic Ground or Analog ground.
