0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Can a vector have a component greater than its magnitude in higher level physics?
yeah, it can. for example consider two antiparallel vectors of magnitude 5,3 whose resultant is 2, which is smaller than both components.....
How is a fraction related to its reduce form?
The two are equivalent.The two are equivalent.The two are equivalent.The two are equivalent.
Two ratios that are equivalent are said to be in what?
Two ratios that are equivalent are said to be in proportion
Which two decimals are equivalent to 2.5?
two decimals equivalent to 2.5 = 2.50, 2.500
What are two equivalent decimals for 253?
two equivalent decimals for 253 = 253.0 or 253.00
Where does a SCR differ from a power transistor in operation?
thyristor can be scr or triac scr is strictly dc a triac is back to back scr's with a common gate two scr's back to back can be gated independently scrs cost less than triacs an scr can be combined with a full wave bridge to make an equivalent to a triac but this gives an additional 1.5V forward voltage drop
What is an antiparallel?
An antiparallel is a line which forms equal angles with two other lines but in opposite directions.
State two advantages of a triac as compared to an SCR?
triac act as a ac contactor
What is an antiparallel force?
When it is not parallel. Parallel is when it is two straight lines: like train tracks are antiparallel, when it is going of course: Like a trapezium.
What is a gateless triac?
A gateless triac is a diac. It is often used in the gate circuit of a triac to balance out the firing voltage for the triac in both quadrants, so that there is no DC offset in the controlled load. This is because, while the gate trigger voltage is often asymmetric in the two quadrants, the M1/M2 breakdown voltage is often symmetric.
What does antiparallel mean?
Anti-parallel means the sides of the DNA double helix.
Contrast the scr and the triac?
Essentially an Scr is a solid state switch that will only allow current to flow in one direction. A triac is essentially two scr's in Anti- parallel that allows current to pass in both directions.
Can you use Diac and Triac for dc supply?
The diac conducts in both directions at approximately the same voltage, making it unsuitable in an AC to DC supply. The triac also conducts in both directions, based on a gate voltage which is slightly different in the two usable quadrants. That is why the diac is often used to trigger the triac - it makes the two conduction cycles more symmetric. In both cases, the diac/triac does not make sense for an AC to DC supply, but it works well in an AC voltage regulator, such as a lamp dimmer or motor speed controller.
Are Single stranded DNA molecules are said to be antiparallel when they lined up next to each other but oriented in opposite directions?
Yes. Technically they need to be two individual strands of a double-stranded molecule and not single-stranded molecules in order to be called antiparallel.
Why we don't use triac in case of ac controlled rectfier rather than scr?
A TRIAC does not have a symmetrical turn-on point in the opposite quadrant. This will introduce a DC bias, which you probably don't want. You can use an SCR, and then add diodes to allow it to operate in the opposite quadrant, or you can use two SCR's. Alternatively, you can use a DIAC in the TRIAC's gate circuit to balance the turn on point.
What is SCRS..?
A SCR is a Silcon Controlled Recifier. It is a four layer device that can be conceptually considered to be two transistors in latch up configuration. (Though not exactly) For an SCR, there will be no conduction between anode and cathode until the gate / cathode junction is biased on. At that point, the SCR will latch up and conduct from anode to cathode, regardless of further changes on the gate. This condition will persist until the anode / cathode voltage drops to zero. The SCR can be used as a half wave dimmer in an AC circuit. If you want full wave operation, you need to use a bridge rectifier around the SCR, or use a TRIAC/DIAC circuit.
What is the function of moc 3041?
The MOC3041 is an opto-isolator, also known as opto-coupler, the function of opto-coupler is to provide electrical isolation between two different circuits, there are several types of opto-couplers, which have an LED and one another switching device, i.e. transistor, diac or triac, The MOC3041 contains one LED and one Triac with a zero crossing detector at its gate input, so it can be used to provide triggering pulses to the high power triac, used for controlling power to the AC Load. For more details, see the datasheet of MOC3041.
