Electrical Engineering

Both, in a way. Electronic components, including moth components inside the computer, need DC. However, since the power available in homes or offices is AC, a computer is designed to work with this. A computer has a power supply that internally converts AC to DC.

Yes, in synchronous motor theory, excitation current is the same as field current. This current is used to produce the magnetic field in the rotor that interacts with the stator current to generate torque and make the motor operate synchronously.

The same way you destroy anything else. melt it in a furnace is the only way because if you chop it one end will be south and the other will be north

If you mean "How do you remove the magnetism from a permanent magnet?" There are several ways.

You can heat it past its Curie Point. For iron that is about 800C.

Stroking one magnet with another in a random fashion will sometimes work.

Hammering it will usually work.

EIRP= Power of transmitter(dbw) + Antenna Gain (dBi) - (Feeder Loss + Combiner Loss)

Feeder Loss depends on operating frequency, type of feeder (coax, waveguide,

ladder-line, etc.), and nominal frequency for which the feeder is designed.

Power door locks on a 1998 GMC Yukon may self-operate due to a faulty door lock actuator, a short circuit in the wiring, or a malfunctioning key fob. It is best to have a professional mechanic diagnose and repair the issue to prevent any further unexpected door lock operations.

It is illegal and unsafe to tamper or manipulate an electric meter to increase its reading. This can result in fines or even criminal charges. It is best to report any issues or concerns about your electricity usage to the utility company for investigation.

(1.08W/cm2)(10-3kW/W)(104cm2/m2)=10.8W/m2.

When an electromagnet is connected to wires and a motor, the electromagnet generates a magnetic field when current flows through the wires. This magnetic field interacts with other magnetic fields in the motor, causing the motor to either spin or generate motion depending on the design and configuration.

The output voltage can be calculated using Ohm's Law, which states that V (voltage) = I (current) * R (resistance), where I is the current flowing through the circuit and R is the resistance of the circuit. Alternatively, you can use the voltage divider formula Vout = Vin * (R2 / (R1 + R2)), where Vin is the input voltage and R2 / (R1 + R2) is the voltage divider ratio of resistors R1 and R2.

In 2008, the President of the United States was George W. Bush. He served as the 43rd President from 2001 to 2009.

The primary purpose of an electrical service drip loop is to prevent water from traveling along the service drop cables and entering the service entrance of a building. This helps to protect the electrical wiring and components from water damage, reducing the risk of electrical hazards and disruptions.

The diaphragm in a compound microscope is an adjustable circular disk located beneath the stage. It helps control the amount of light that passes through the specimen, allowing for better contrast and clarity in the image. By adjusting the diaphragm, users can regulate the intensity and focus of the light to achieve optimal viewing conditions.

Voltage is measured in volts (V). It represents the potential difference between two points in a circuit, which determines the force that drives electric current to flow.

to calculate the cable size of a run of 30 meters long

you first will have to know the current of the appliance

use the voltage drop formula

V d = (mVxIxL)/1000

once the voltage drop is less than 2.5% of the nominal voltage,

the cable should be upsize.

Lets call the two components Phase A and Phase B. Phase equilibria of a two component system occurs when the rate of change of Phase A to Phase B is equal to the rate of change of Phase B to Phase A - meaning that the total change is zero, hence equilibrium is achieved.

KW is the unit power KWh is the unit of electrical energy KW or Watt defines the rating or power of a electrical equipment. For ex: motors, heaters etc. KWh is a measurement that how much energy is been consumed by the electrical equipments. Generally, operating 1KW rated equipment for an hour measures one KWh. Energy meters are the instruments for this purpose

The breaker on a central vacuum unit may trip due to overloading, short circuits, or insulation issues. It could also be caused by a faulty motor, excessive dirt or debris in the system, or problems with the electrical connections. It's important to have a professional electrician diagnose and fix the issue to ensure safety.

A DC waveform is produced from the output terminals of a DC generator through the action of a commutator, which converts the alternating current induced in the armature windings into direct current by reversing the direction of current flow at the appropriate times. As the armature rotates within the magnetic field, the commutator ensures that the output current remains unidirectional, resulting in a DC waveform at the generator terminals.

Foods do not contain electricity. However, certain fruits like potatoes and lemons can be used to create a simple battery when combined with other materials like copper and zinc. This is known as a vegetable battery, but it does not generate electricity from the food itself.

Air bubbles are pockets of air trapped within a liquid or solid material. They can form naturally during processes like boiling or fermentation, or can be intentionally introduced for various purposes such as in aerating liquids like water or in products like bubble wrap for cushioning.

A 'volt ampere' (not 'volt amp'!) is the unit for theapparent power of a load in an a.c. circuit. It is simply the product of the supply voltage and the load current.

A feeler gauge is typically used to measure dynamic valve clearance in internal combustion engines. The gauge is inserted between the valve stem and the rocker arm to determine the correct clearance while the engine is running.

You can put less resistance (more load) on the battery with larger wires, but if you exceed a particular current output for a given duration, you will overheat the battery. To safely increase current output, use two batteries connected in parallel.

The current carrying capacity of a cable depends on factors such as its material, size, and insulation. It is typically rated in amperes (A) and indicates the maximum current that the cable can safely carry without overheating. Exceeding this rating can pose a fire hazard or damage the cable.