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Why in an electrical lab a bulb connected to supply goes off slowly when the main supply is switched off?
Kingmansingh
the electrons in the wire connected to the bulb take a while to fade away completely as the main energy source is turned off, causing the bulb to glow faintly until all of the electricity is out of the system
Wiki User
∙ 13y ago
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What point in an electrical circuit that is connected to the negative side of a power supply is called what?
battery
How do you use electricity in your life?
I read at night using a light bulb that is connected to an electrical supply.
How do you check the under voltage relay?
The way you check to see if an under voltage relay is wired properly is to disconnect the electrical supply. If the device that is connected to the load side of the relay does not start up or energize when the electrical supply is reconnected, then the relay is connected correctly.
Why battery is required in UPS?
In an uninterrupted power supply there has to be a source of power when the electrical utility is not there. The only supply that is available is a battery that is in or connected to the UPS.
What is a spur of a ring circuit?
this is a cable that is connected to a ring to supply electrical energy to one or more socket.
What is the primary objective of the Philippine electrical code?
As with every electrical code around the world, the primary objective is the safe installation of electrical equipment that is connected to the electrical grid. Overall the objective is keeping everyone and everything safe in conjunction with the use of an electrical supply source.
Will a 3 phase motor work on grounded B phase?
If the motor is connected to an ungrounded delta supply service there will be no effect on the operation of the motor. If the motor is connected to a wye system supply service and the B phase grounds out, the motor's overload protection would take the motor off line from the electrical supply.
How could you find the purpose of a parallel circuit?
For an electrical load, such as a lamp, heater or motor, to operate at its rated power, it must be subject to its rated voltage which always corresponds to the supply voltage. For this to happen, individual loads must be connected in parallel with the supply and with each other. So all the electrical loads in your home, in your car, etc., are ALL connected in parallel.
How do you connect an ammeter and voltmeter?
The voltmeter is connected across the supply and the ammeter is connected in series with the supply.
What is the full form of SMPS?
Switched Mode Power Supply
What was the first electrical appliance in the world?
The early experimenters developed lights - as arcs and sparks. The first appliance that sold in any numbers was the light bulb; in fact people connected their houses to the electrical supply to get electric lighting.
What happens to the steel wool when the power supply is switched on?
Sending a small electrical charge through a pad of steel wool, will cause the metal to glow and burst into flames.
