Electrical Engineering

It depends on how many wires are in the cable. The more conductors in the cable set the longer it will take to splice them.

The string in Meldes experiment can be made to vibrate in several ways. In most schoolphysics experiments the devices are:

1) loudspeakertype vibrator, where a rod is connected to a loudspeakermembrane and transmits the oscillations to a wire mounted on the end of the rod.

2) small DC-motor with an arm attached to the rotor. The string is attached to the arm, which moves up and down

3) electrical vibrator with coils and vibrating metalblade. The string is attached to the metalblade.

In each case the device is driven by a signal-generator that outputs a harmonic electric signal.

Television sets do not need to be connected to isolation transformers for normal operation. However, most modern sets do not have power transformers, which means they run directly off of the line. In that case, you do need an isolation transformer to protect yourself from electrocution during repair.

You'll get a reading on the ammeter showing 15 mA

An electric soldering iron is heated by an electric resistance coil inside.

Others may be heated either by a gas(like propane) flame, or by sticking them in a forge between uses.

Yes, an open in main line of a parallel circuit will effect the entire circuit current and make the whole circuit current zero

The main property is that it should be a good conductor, i.e. it should have good conductivity (low resistivity). Secondary considerations are mechanical strength under tension, ductility and the availability of abundant ore deposits. On all counts copper wins, with aluminium a second choice, usually for overhead cables.

Grounding plates work better in the desert areas because of the vast land.

To calculate the inductance of a home made inductor simply take the number of turns,the magnetic flux linkage and the current and use the inductance formula.

A delta connected appliance can be connected to a 3-phase system by leaving the neutral unconnected. The appliance must be properly earthed.

Try running the generator at lower rpm by adjusting engine speed. If 120v 60hz generator is designed for 1200 rpm, then try running it at 1000 rpm.

Many things are possible. Open circuit or winding. Blown fuse or circuit breaker. Loss of excitation current. Just to name three.

Jix Rexzor is the alter ego of Jerlyn Peñola Tinio.

Transformers that operate specific devices should be matched to the specific voltage on the device that the manufacturer specifies.

Most transistors and diodes exhibit reverse bias leakage.

ait is a under ground were there are trains

higher current handling / heat dissipation This is not really true as those are not singular characteristics of darlingtons. The major characteristics of a darlington is high gain, typically ranging from over 100 to 1000. And since there are essentially two transistors in the case of a darlington and the base of a darlington is connected to the base of the first transistor whose emitter is connected to the base of the second (power or output) transistor, the forward voltage drop from the base to the emitter of the darlington is approximately 2 times the forward voltage drop of a single transistor. it is a beta multiplier therefore it has higher emitter current capability and it not a hi gain per say just higher current capability as opposed to a regular transistor. usage is for an emitter follower which has no voltgage gain at all.

YES absolutely you need to remove pulley to perform AHU Motor No Load Solo Run Vibration Test or else you Require to have a formula for Over Hung Load.

If Require a complete Solution to Solve your Problem, Please do send me a email : fareedsyed18@yahoo.com ( Charges to be discussed later ) I can provide complete detail of calculations with Pictures using calibrated Instruments.

Flame-retardant (I realize that's hyphenated),incombustible, fireproof, noncombustible, nonflammable...

If the synchronous motor is running near synchronous speed, it will begin rotating at synchronous speed when DC is applied to the rotor.

Source:

Electrical Machines, Drives, and Power Systems

Theodore Wildi

Section 17.3

Open the passenger door & remove the cover on the side of the dashboard...

One possibility is that the accuracy of the Simpson is different on the different scales. Another (more probable) possibility is that the impedance of the Simpson on the different scales is sufficiently different so as to affect the reading. This is a common issue with low impedance multi-meters. Lets say you are using a typical Simpson meter with 20,000 Ohms per Volt. On a three volt scale, that means the meter itself has an impedance of 60,000 Ohms. On a 60 volt scale, however the meter has an impedance of 1,200,000 Ohms. Depending on the circuit impedance, that can have a significant impact on the final reading, which must be taken into consideration. Look at the equation for parallel resistance: RT = R1R2 / (R1+R2). If the meter impedance changes the circuit impedance by more than, say, 5%, that is going to affect the observed value. (You pick the percent limit - it depends on the situation.) Even for the case with a high impedance meter, say a 10,000,000 Ohm Digital Multi-meter, impedance must be considered if the circuit impedance is high enough. (I have a WWVB receiver that requires a 1,000,000,000 Ohm voltmeter to correctly measure the AGC voltage - no ordinary digital multimeter will suffice.)This does not mean that you have to spend lots of money on a high performance, high impedance, meter. You simply have to consider what the impedance of the meter is going to do to the circuit, and calculate that impact, before you state the results.

Impedance.

the flowing in the conductor is related as given by the relation...

I=Vena

v=drift velocity of electron

e=charge on electron

n=concentration of electron in the current carrying conductor .

a=area

If the nameplate rating is 56 amps then that is the maximum amount of current that the motor should draw. If you are talking about the inrush current and not the run current, the current could get up to 300% instantaneously for five time cycles over full load amps. It is this condition that allows a larger size breaker or fusing to be used on smaller size wiring. The high current is not on the wire long enough to start doing physical damage to the insulation.