Electrical Engineering

You would need two more circuit breakers in your main panel and run feed wires to each room. You would also have to determine where you could break the existing circuit for the two new rooms being rewired. How easy or hard this is depends on accessibility of the wiring for the rooms, such as in a basement or attic. This type of job will require skills in wiring and creating safe junction boxes. Don't even attempt if you don't know what you are doing.

Yes it is possible because undo wear may be caused on the electric cord such that the hot and neutral bare wire come in contact. The area rug would also likely cause the wire to get hotter than usual which will cause the wire insulation to break down. As you can see, this is a bad idea.

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Your stereo system has an internal transformer in the power supply that is designed to operate at a given frequency. If it is designed to operate at the load your stereo system will use at 50 Hz, then yes. Otherwise this transformer will overheat when connected at the wrong frequency, and will burn out.

You might be lucky and the power supply may be labelled to operate at 50 or 60Hz; if not, I recommend contacting the manufacturer.

A voltage transformer will convert 50Hz 220 to 50Hz 110. To change frequency, you need special equipment.

The voltage is unknown, because it depends on the impedance of each battery. Certainly, damage is going to be done, because there will be excessive current.

A HIPOT test, or a dielectric test, is designed to ensure there is no breakdown when a device under test has a high voltage applied to it, which means that it is a simple pass or fail test with no requirement for data. Requirements in safety standards may require the testing of leakage current, however, so the best example of calculating the accepted leakage current is: If you apply 1000 volts to the device under test and adjust the tester until there is a breakdown, if the products resistance is below 120,000 ohms the maximum leakage current allowed is 8.333 mA (This is calculated using the formula 1000/120,000 which is aqual to 8.333mA).

What you are describing is a carbon microphone. This consists of a diaphragm behind which are placed granules of carbon. When the diaphragm vibrates due to variations in sound waves, it acts to compress the carbon granules -thus varying the resistance of the carbon granules as a whole. This variation in resistance is used to modify a current which is then amplified.

The SL100 is a PNP medium power transistor, suitable for use up to ~100MHz. This can be used in the power amplifier stage, with the output connected to a tuning network/transformer + antenna for AM modulation. It's purpose, if used in this application, is to supply current (usually a voltage amplifier circuit will precede this one) to drive the antenna.

No, 12 volts means 12 volts. Anything less will not work and anything more will not work.

Any circuit has at least two conductors. Otherwise, by Kirchoff's current law, there would be no current, therefore no power, therefore no work. The current coming on one wire is exactly balanced by the current going out on the other wire. If there is a third wire/connection, such as a ground wire, it is possible for current to flow on that conductor as well but, usually, there is no current expected to flow on the (safety) ground conductor.

There is no 'standard' output current from a transformer. The secondary (output) current depends on the load, and should not exceed the rated secondary current. To find the rated secondary current, you divide the transformer's rated volt amperes by the rated secondary voltage.

The above cited answer need more descriptive ; a) V/Z = I, b) V/Z = I + Magnetizing current of the transformer taken from Primary side of the transformer.

A capacitance of 0.00036 farads is equal to 360 microfarads.

with an ideal electrical transformer with an input current of 2 amps and an output current of 1 amp what is the turns ratio of the secondary and primary coils

A simple circuit contains:

Power source - battery, wall outlet

Path - wire or other conductor

Load - light bulb

Start with a small light bulb... see if you have extra bulbs for the car, tail light bulbs for example. Hook one wire to a pole on a 9v battery, then the tip of the light bulb's connection end. Then a second wire on the side of the bulbs connection end, and return to the source.

The term SMART is generally associated with any item when it has the capability to connect to the internet. A microcontroller along with provisions for a receiver, transmitter, and local power fetches lots of functionalities into the system, including limited computation and storage functionalities and connecting to a Wi-Fi internet network.

A Smart Meter does the basic task of metering the electricity flowing through the circuit, however, it also transmits the meter data to cloud, wherein, the data is scanned, cleaned, stored, formatted, and reported in desired formats.

The end-users, can install mobile apps in their smartphones and configure the smart meter and the Wi-Fi internet connection to complete the setup.

One the initial setup is done, the users can check real-time electricity consumption and the historical usages on the Smartphone from anywhere in the world.

Various tables and charts can also be plotted for better data visualisations and analysis....

It is a resistive type of circuit.

You don't get more from a cell than it is designed for. If you want higher voltage, stack more cells. 2.1 volts is a high voltage for a single cell; I'm not certain this is correct (I believe typical is 1.2 - 1.5).

On a three phase motor, the phases give you direction for how to hook the motor up to make it spin one direction vs. the other. If you hook up such a motor blindly with all three phases, it may spin in the opposite direction you want; to fix, you swap any two of the three phase connections.

Just like most things, it would be a personal choice. I am 64 and an EE. I am still working because I enjoy what I am doing.

300 / 25, or 12/1.

0, but your power source will be drained rapidly, one should be the minimum, but there are a lot of x factors I can not account for

The capacitor is called a bypass capacitor , it provides a low impedence path for AC emitter current to groun.

A dependent source is a source that is dependent on, i.e. a function of, some other thing in the circuit. Often, a transistor is represented as a dependent current source, with collector-emitter current being dependent on base-emitter current times hFe, or beta-gain, limited by the collector-emitter resistor network.

if too much current (amps, most similar to the volume of water in a river) flows throught the fuse, it will shed excess energy as heat, causing the wire to melt and breaking a dangerous circuit. the amount of amps is limited by the amount of amps required, so if + and - connect ALL OF THE CURRENT WILL FLOW, also heating and melting the fuse. some fuses and breakers have other capabilitites.

breakers: a breaker, is a resetable version of fuse, when current gets too strong, the magnetism from a coil of wire pulls the breaker back open and breaks the circuit