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Why doesn't an SCR switch off once it turns on even after reducing gate potential?
Wiki User
∙ 12y ago
A thyristor or silicon controlled rectifier (SCR), as they are sometimes known, consists of two transistors. A pulse on the gate turns on the second transistor which then turns on the first transistor in the combination. Turning on the first transistor enables anode current to flow and maintains a base current for the second transistor which keeps it on.
See the Related link for an equivalent circuit for an SCR or thyristor.
Wiki User
∙ 12y ago
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A step-down transformer has 525 turns in its secondary and 12500 turns in its primary If the potential difference across the primary is 3510 V what is the potential difference across the secondary?
The potential difference across the secondary coil will be 147.42 Volts
Would Current flow evenly in a circuit?
no because the earth turns sideways. and i sleep on my side so it doesnt work :)
Switch that regularly reverses the current in some motors?
A switch that reverses the direction of the current in a motor is called a forward reverse drum switch. It is a single phase motor that turns from clockwise to counter clockwise.
If the number of turns in the primary side of the transformer is 200 and the number of turns in the secondary coil is 100 what is the ratio?
If the number of turns in the primary side of the transformer is 200 and the number of turns in the secondary coil is 100, the turns ratio is 200 to 100, or 2 to 1. This application would be a step-down transformer, reducing voltage by one half and doubling current.
Why potential transformers have large number of primary turns and a few number of secondary turns?
Transformers consist of number of turns so as to produce flux that is link with the core to produce an emf due to which current in the secondary winding produces. as by the equation- E1/E2=N1/N2=I2/I1
Where is the backup light switch located on a 1991 Jeep Cherokee Manual doesnt show location?
The switch that turns on the backing lights also ensures that the vehicle can only be started in "Park" or "Neutral". It is located on the transmission housing. In many cases the switch can be removed, the contacts cleaned and the part replaced.
What does a switch do in a computer?
i turns it on
What is digital TDMPCM switch?
a switch that turns off equipment in an emergency.
Where is the button for the side mirror defrosters on a dodge caravan?
If your van is equipped with heated mirrors, the same switch that turns on the rear window defroster turns them on.If your van is equipped with heated mirrors, the same switch that turns on the rear window defroster turns them on.
What is a inertia fuel shut off switch?
It is a safety device in vehicles that turns off the power to the fuel pump at impact with another vehicle or object. It prevents the flow of fuel, thereby reducing the chance of fire or explosion.
What does the power switch on a camera do?
the power switch on a camera turns on or off the camera.
Does a tree standing in the for est have potential energy?
It starts out as kinetic energy then it turns into potential energy
A person jumping off niagara falls energy turns into what?
Potential energy turns into kinetic energy.
A step-down transformer has 525 turns in its secondary and 12500 turns in its primary If the potential difference across the primary is 3510 V what is the potential difference across the secondary?
The potential difference across the secondary coil will be 147.42 Volts
What is the function of a light switch?
It turns a lamp on and off.
What is a pump switch?
an item that turns on or off another item (like the light switch in your home)
The functions of switch?
A switch turns on or off electrical power flowing through a cable or circuit.
