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Passing too much current through a mains cable can lead to overheating, which can result in the insulation melting and causing a short circuit. This can pose a fire hazard and increase the risk of electric shocks. Additionally, exceeding the current-carrying capacity of the cable can damage the electrical components connected to it.
What else can I help you with?
What wave shape of the mains supply is know as?
The mains supply wave shape is known as a sine wave. It represents the alternating current that is provided by electrical utilities for powering our homes and businesses.
A 2 KW iron is used on a 100 V AC mains The current in the iron is?
The current in the iron can be calculated using the formula P = V * I, where P is power (2 kW = 2000 W), V is voltage (100 V), and I is the current. Rearranging the formula to solve for I, we get I = P / V. Substituting the values, the current in the iron is 20 A.
Properties of a resistors?
They are used in circuits and devices commonly (eg.the computer and TV) they slow the amount of electrons going through so that if you are plugged into the mains and have a light bulb that is small, the resistor would be put in place to the device eg.the light bulb doesnt burn out.
Which is more powerful a torch bulb or a mains filament bulb?
Mains filament
How a transformer transfer electricity?
A transformer works because of two principles:(a) magentic fields are created by the movement of charged particles - this includes electicity (electrons) moving through a regular cable.(b) a conductor will induce a charge if it is moved through a magnetic field.In a transformer the primary coil is powered which results in a magnetic field being produced, as per (a). Because the magnetic field generated by a single cable is very small a transformer uses a coil of several hundred loops to increase the magnetic field produced.A transformer needs to be powered by AC (alternating current). In AC the direction of the current flow changes (e.g. mains power typically changes direction 50 to 60 times per second). As the AC power changes polarity so does the magnetic field and the North-South poles swap with the AC power.This changing of magnetic poles is equivalent to moving the magnetic field around. Even though the secondary coil doesn't move, because the magnetic field is moving a current is induced in the secondary coil as per (b).The number of loops in the primary coil compared to the number of coils in the secondary loop is used to control the strength of the magnetic field, the secondary coil induction effect and thus the output voltage. This is a simple ratio, so if the secondary coil has twice as many loops as the primary then the output voltage will be twice the input voltage.There are two types of transformers, "step up" where the voltage is increased and "step down" where the voltage is reduced.
Why is it dangerous to pass to much current through the mains cable?
Current or AMPS are what the appliance draws or load of the appliance. So, if you have a say 10,000 amps going thru a cable rated for say 1,000 amps , guess what ,the cable over heats and either will melt or at least catch fire.
Which wire is the most dangerous in a plug?
The Active wire is always either Red (in a 3 core Red, Black and Green cable) or Brown (in a 3 core Brown, Blue and Green/Yellow cable). You can also be electrocuted by the neutral (Black or Blue) wire if the active is still supplying current through a device. The only truly safe way to handle mains wiring is to completely isolate the circuit at the fuse board.
What is the function of the power supply cable?
· A power cord, line cord or mains cable is known as the supply cable, which temporarily connects an appliance to the mains electricity supply to a wall socket. · A supply cable connects the refrigerator to the mains electricity supply via a wall socket.
What is the function of the power cables?
· A power cord, line cord or mains cable is known as the supply cable, which temporarily connects an appliance to the mains electricity supply to a wall socket. · A supply cable connects the refrigerator to the mains electricity supply via a wall socket.
What is the function of a mains lead in a strip heater?
The mains lead in a strip heater serves as the primary power supply connection between the heater and the electrical outlet. It is typically a flexible insulated cable that carries the electrical current from the source to the heating element within the heater. The mains lead is essential for providing the necessary power for the heater to generate heat and maintain the desired temperature. It is important to ensure that the mains lead is properly connected and in good condition to prevent any electrical hazards or malfunctions.
What is difference between battery and mains electricity?
Mains supply provides alternative current while battery provides direct current.
What you get from mains voltage or current?
You get power, which is voltage * current (so both!).
How many amps are in mains power?
In most countries, mains power typically supplies electricity at 120 or 240 volts. The current flowing through mains power can vary depending on the electrical load, but it is typically around 10-15 amps for household circuits.
What is service mains in power transmission system?
A 'service mains' is not associated with an electricity 'transmission' system, but with a low-voltage 'distribution' system. The service mains is the name given to the cable that connects a building to the low-voltage mains supply.
Why is mains electricity more dangerous than battary?
Two main reasons: - voltage - batteries usually(but not always) have such a low voltage that they can't push a dangerous current through a human body. - muscle interaction - Batteries are DC (direct current) while mains are AC (alternating current). And AC current will cause the muscles to spasm and lock, so if you were to accidentally grasp something electric, it'll be really hard to break free. But don't get this wrong. If you know what you're doing, it's entirely possible to kill yourself with nothing but a 12-volt battery.
What does 1.5mm and 2.5mm in mains cable refer to?
The 1.5mm and 2.5mm in mains cable refer to the cross-sectional area of the conductors, specifically the copper or aluminum wires within the cable. This measurement indicates the thickness of the wires, which affects the cable's current-carrying capacity and resistance. Generally, a larger cross-sectional area (like 2.5mm) can handle higher electrical loads safely compared to a smaller one (like 1.5mm). Therefore, the choice between these sizes depends on the electrical demands of the application.
Who do you contact to have mains electric cable laid to your property?
The electrical supply authority for your area
