Electronics Engineering

if one diode is open circuited(a break in the circuit):

it will act as a half wave rectifier .only +ve or -ve 1/2 cycles available at o/p.

if one diode is short(more probable case due to burn out).

this place a short across source for one half cycle,may destroy circuit.

In normal a.m. the sum of the power in the two sidebands can't exceed half the power of the carrier.

For example, a 100W carrier when 100% modulated will have 25W in each sideband. Since both sidebands have identical information, one of them can be considered redundant. So we are transmitting 150W and making use of only 25W.

In suppressed carrier d.s.b. we can achieve better efficiency since, with high suppression, we have 50% of the total power in each sideband.

So a 150W transmitter, at 100% modulation, will radiate 75W in each sideband.

the many things...

a complete microcomputer on a chip optimized for device control applications.

The so-called "Class-A" amplifier is the configuration with the least distortion.

Active stages are biased to operate within the linear portion of their characteristics,

and drive is controlled to avoid saturation or cutoff. Any remaining distortion is due

exclusively to unavoidable non-linearities in components.

DA conversion or D-to-A conversion.

A technical submission occurs when the referee or doctor must stop a fight due to an obvious injury to the figher or lack of consciousness of the fighter. An example would be if a bone breaks during a submission attempt, but the fighter does not actually submit.

Yes an AC adaptors output can be AC. In order to change the output to AC a few components inside of the adaptor has to be removed. Pretty much all that has to be removed from the adaptor are the diodes. The gaps in the circuit then have to be bridged in order for the electricity to continue to flow to the output plug. However this can cause problems with the circuit causing the capacitors to explode. I dont recommend modifying an adaptor to output AC. Just go out and buy another one.

If a motor is running when the cap fails it will probably continue to run at much higher amp draw and most likely shut down on thermal overload. It can start with a bad cap, but in my experience it most likey wont.

The output of an AND gate is set only when all of its inputs are set, and when switches are wired together in series, current can flow only when all of the switches are on.

You have not turned it on Check power plugs, power leads switches etc

You use a thermocouple as the input to the amplifier circuit.

No, only certain materials can become superconductors.

These materials form Cooper Pairs with their conduction band electrons at low temperature, making the electrons coherent (analogous to photons in a LASER beam). This coherence prevents resistance to current flow. Most insulators lack conduction band electrons.

High temperature copper oxide ceramic superconductors are an exception as they lack conduction band electrons, but their copper oxide structure is highly distorted in a way that allows bound electrons to form Cooper Pairs.

in elctronic eqiuipments

Fuse is a circuit element which disconnects the electrical current from the mains"supply"

feeding the load when a condition of fault "short circuit " occurs.

one behaviour of electric current that it flows undivided in circuit elements connected

in series and is divided when flows in circuit elements connected in parallel.

so in order to protect a circuit fuse MUST be connected in series to cut/disconnect the faulty current in a safe/short time.

if u connect a fuse in parallel to a component then u will be shorting that component and

the component will not function ;because the fuse is a thin wire with a negligible resistance

and electrical current flows in the most easy "less resistive" component.

besides a short circuit will happen immediatly because u connectthe supply to the neutral!

hope that helps.

Assuming a propogation speed of 3x108 m/s (approximate speed of light), a frequency of 106.5 MHz would have a wavelength of about 2.8 m.

A Darlington pair is two transistors connected to give a very high current gain

It depends on which computer information you are talking about. The start-up instructions for even turning the computer on are stored in the ROM. The operating system and programs you are using are stored in RAM while they are being used. However, most of the information you use is stored on storage devices such as the hard drive.

Traditionally, the hard drive has been a motorized box with platters and heads inside. This is a magnetic storage medium. There is a seek mechanism to align the heads with the correct track, and sectors are a matter of waiting for the right moment to access them as the platters spin. Nowadays, Solid State Drives are in use as well. They have no moving parts and store data to nonvolatile memory. For certain tasks, they are much faster than traditional hard drives. Writes can be slower than mechanical drives, but it depends on the drive.

Most motor speed controllers have all the power that goes to the motor go through a SCR (usually a TRIAC).

If you remove the SCR from such a system, no power will get to the motor and nothing will move -- the SCR is a necessary, critical part.

However, many motor speed controllers -- in particular, most variable-frequency drives (VFD), also called inverter drives, typically use some other component to transfer power to the motor -- usually MOSFETs in low-voltage systems and IGBTs in higher-voltage systems.

They don't use any SCRs, and so SCRs are not absolutely necessary for motor speed control.

The letter R is used to represent resistance. For instance, the R in a circuit is said to be 52 ohms. Just that simple.

47.325 MHZ +/- .275 MHZ. Try 6.4 to 7.543 hertz as per the resonant frequency of the earth: such as used in the philadelphia experiment. as you increase frequency you increase time. Going forward in time gives an uncertain chaotic feeling / as going backwards is more like euphoric or eutopic. I suggest extreemly slow adjustment as to give TIME for the coils to adjust to time2 resonance especialy as time resonence is such a small spectrum. I hope this helped. Now how do you wind a self resonant coil to 7.5Hz, which I believe is equal to present time. E L F extra low frequency , not to be confused with a midget vulcan.

what is semiconductor state advantages of semiconductor devices over electronic tubes

Darlington circuit is voltage follower circuit with high input impedance and low output impedance.Darlington IC must have this ciruit integrated on it..

yes