Electrical Engineering

Some are series, some parallel, some both. Depends on the design. Series heaters will have all the heaters fail or shut off should one burn out or open circuit. Should a series heater short out the other heaters will see increased voltage so must be able to handle full voltage or they will overheat and fail.

Parallel heaters will not notice if one of the others open circuit. If protection devices, such as fuses or overloads or overtemp, are installed for each heater all others will continue to operate if one shorts out or fails.

Parallel heater designs are more common.

yes as long as you only use one leg and the neutral of the 220 or if the charger is designed to operate on either voltage

I believe 200 dollars? I bought mine in august and that was the price.

Never probe airbag wiring with a power probe or multi-meter unless you have isolated the circuit by disconnecting both the airbag module and airbag component. As long as you have disconnected these you will be fine.

Yes and no. A capacitor generally does not pass DC current, except for a small "leakage current", but upon the inital application of a DC voltage, the capacitor will pass current until it reaches the full potential of the applied voltage. The simple answer is no it does not. In fact we use that characteristic to "decouple" one circuit from another in amplifiers for example.

230V/1Ph/50Hz 1HP (0.75 kW)Motor

Capacitor start induction motor ( single phase)

Consider t resistors with same Ohmic values. If they are in series total resistance Rt = R1 + R2. if they are in parallel then total resistance Rt = 1/R1 + 1/R2. Series connection will have higher resistance.

If white smoke is coming out of the exhaust when the engine is warmed up , it

sounds like engine coolant is getting into an engine cylinder

You should be able to use it as is (assuming the plug matches your outlet). It will just run a little bit cooler at 220 volts vs. 230 volts.

A: It really depends on the load requirement . Example driving a relay hi ripple with no capacitor is an advantage in efficiency for a sensitive amplifier it will cause mayhem with the performance

we use it when we require a variable resistance in a circuit

A: Current flow only if there is a return path to the source it does not matter what it is connected to. What leaves at one end of the source will be identical to the return in current

A pure resistive load always has a power factor of one. This is because the current and voltage waveforms are in phase in an AC circuit.

When a capacitor discharges the discharge current flows in the opposite direction to the current used to charge it.

A good time to use a power generator is when there is a power cut in the vicinity. power generators will provide a temporary energy source for household essentials to be run from.

Well, first of all it's entirely possible to weld with ac as well. But if you want dc it's usually accomplished with diodes in something called a bridge rectifier.

Quite well. But what kind of amp? In general, the amp takes a "line level" signal (left and right channel) and puts it through a series of amplifiers to make the signal bigger (amplify it). This is an increase in what is called the "gain" of a given stage or of a series of stages. Small signals drive the "control" circuit of the semiconductor devices, which are the amplifiers themselves, and this causes large swings in the output voltage of the stage (giving the amp gain). After a few of these, the signal is sufficiently amplified and can be used to drive a pair of speakers.

A motor that has greater than stock displacement due to an increase in the factory crank throw. An increase in crank throw increases stroke (the difference between the piston's top dead center and bottom dead center position).

Depends on how big the motor is. A stronger motor will draw more amps then a weaker or less efficient motor. For example a wiper motor draws far less then a starter motor.

A "resistance" or "resistor".

Isolation transformers are used to protect people working on transformerless equipment, where there is a 50-50 chance that the equipment's metalwork is at mains active voltage (110/240 V).

Plugging in to the transformer "floats" the equipment, so that the metalwork can be safely connected to ground, and remove any voltage on it.

An ELCB relies on detecting the imbalance between active current and neutral current that occurs when you touch a wire of metalwork that's at mains potential.

But, on the secondary of the isolation transformer, you decide which is active and neutral.

It is possible to wire the ELCB into circuit on the secondary side of the transformer, just as you would for a normal installation.

Be aware that you must now connect one of the transformer secondary wires to gound for the ELCB to work (at least, that's the case here in Australia), so you are back into the 50-50 chance of live metalwork, unless you fit a reversing switch that lets you ensure that the metalwork is connected to neutral.

But you need to understand that an ELCB only protects you from active-to-ground shocks, it DOES NOT protect you from active-to-neutral shocks, and there is no current equipment that can.

I STRONGLY SUGGEST that you consult with a licensed electrical contractor to work out what you are trying to achieve.

Electricity gives you one chance.

If everything is connected and working correctly, there shouldn't be (probably). The purpose of a switch is to interrupt current.

-Is this new? Has it been wired correctly? Are you sure?

-How are you measuring this? Is the amount of current flowing within the error margin of your measuring equipment? Are you measuring correctly?

-Is there a "night light" feature to the switch (LED/small light that will always be on when the switch is off)?

-Is this a dimmer switch? Is it actually off, or just turned down so the lights don't appear to be one?

-Is current balanced between the neutral and the phase wire (ie do you have something causing a low magnitude ground fault)?