A Triac has - - - terminals

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1 Answer

Answer :

A Triac has Three terminals

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Related questions

A Triac is a - - - power switch

Last Answer :  A Triac is a Bi-directional power switch

What is TRIAC?

Description : What is TRIAC?

Last Answer : TRIAC Structure:  Operating Principle: A triac is a three terminal, five layer semiconductor device. It is equivalent to two separate SCRs connected in anti-parallel with gates common. ... for electric fans and other electric motors. v. Heating control vi. Zero voltage switched relay

A transistor has ________ number of terminals.

Description : A transistor has ________ number of terminals. (A) 2 (B) 3 (C) 1 (D) 4 

Last Answer : A transistor has 3 number of terminals. 

BJT have how many terminals?

Last Answer : BJT have three terminals Base, emitter and collector.

Diode have how many terminals?

Last Answer : Diode have two terminals.

Figure 'D' shown in the illustration represents a/an ____________. EL-0078 A. DIP IC chip B. integrated diac/triac envelope C. TO-5 flat pack D. 7-segment BCD display

Description : Figure 'D' shown in the illustration represents a/an ____________. EL-0078 A. DIP IC chip B. integrated diac/triac envelope C. TO-5 flat pack D. 7-segment BCD display

Last Answer : Answer: A

A triac thyristor functions as a control device and is basically ________________. A. two NPN transistors in parallel with a common base lead B. a diode in series with a temperature sensitive capacitor C. two back-to-back SCR's with a common gate lead D. a triode tube with an extra heavy grid element

Description : A triac thyristor functions as a control device and is basically ________________. A. two NPN transistors in parallel with a common base lead B. a diode in series with a temperature sensitive capacitor C. two ... -back SCR's with a common gate lead D. a triode tube with an extra heavy grid element

Last Answer : Answer: C

Figure 'A' of the diagram shown in the illustration represents a/an ____________. EL-0078 A. silicon controlled rectifier B. IG or MOS field effect transistor C. triac thyristor D. junction field effect transistor

Description : Figure 'A' of the diagram shown in the illustration represents a/an ____________. EL-0078 A. silicon controlled rectifier B. IG or MOS field effect transistor C. triac thyristor D. junction field effect transistor

Last Answer : Answer: B

When used for ac current control, during which alternation of the ac cycle does the TRIAC control current flow?

Description : When used for ac current control, during which alternation of the ac cycle does the TRIAC control current flow?

Last Answer : During both alternations.

The TRIAC is similar in operation to what device?

Description : The TRIAC is similar in operation to what device?

Last Answer : SCR

When a Triac is properly gated, what is/are the direction(s) of current flow between anodes 1 and 2?

Description : When a Triac is properly gated, what is/are the direction(s) of current flow between anodes 1 and 2?

Last Answer : Current is allowed to flow in either direction.

TRIAC

Description : What is TRIAC ?

Last Answer : TRIAC is three terminal semiconductor device for controlling current. TRIAC is bidirectional device. TRIAC is use for AC switching applications because it can control the current flow over both halves of ... as convenient for some high power applications where its switching is more difficult.

With neat sketch explain four modes of operation of a TRIAC?

Description : With neat sketch explain four modes of operation of a TRIAC? 

Last Answer : Modes of operation of a TRIAC: There are four different operating modes of TRIAC:  1) MT2 and gate are positive with respect to terminal MT1(Mode1) : Here terminal MT2 is positive ... junction P2-N2 is forward biased, current carriers are injected and therefore, the TRIAC is turned on. 

Draw symbol & V-I characteristics of (i) LASCR (ii) DIAC (iii) TRIAC

Description : Draw symbol & V-I characteristics of (i) LASCR (ii) DIAC (iii) TRIAC

Last Answer : (i) LASCR:  (ii) DIAC:  (iii) TRIAC: 

Speed control of the motor using TRIAC

Description : Speed control of the motor using TRIAC

Last Answer : Speed control of the motor using TRIAC:  This basic phase triggering circuit uses the triac in series with the motor across an AC sinusoidal supply. The variable resistor, VR1 is used ... meaning that it may not trigger at the exact same point for each positive and negative half cycle.

Compare SCR and TRIAC

Description : Compare SCR and TRIAC

Last Answer : SCR TRIAC It is an unidirectional device. It is a bidirectional device. It is turned-on by only positive gate current. It can be turned-on by either ... applications including lamp dimmer, heating control, zero voltage switched AC relay, small AC motor control etc.

Draw the symbol of GTO and TRIAC.

Description : Draw the symbol of GTO and TRIAC.

Last Answer : 1) GTO: 2) TRIAC: 

Triac are usually operated at:

Description : Triac are usually operated at:

Last Answer : Triac are usually operated at: power frequency

A triac is a device which acts as a

Description : A triac is a device which acts as a  A) Diode in forward direction and thrylistor in the reverse direction B) Thyristor in both directions C) Diode in both directions D) Thyristor in forward direction and diode in reverse direction

Last Answer : A triac is a device which acts as a Thyristor in both directions

SCR is more utilized as compared to Triac because it is

Description : SCR is more utilized as compared to Triac because it is

Last Answer : SCR is more utilized as compared to Triac because it is available with higher ratings

Can we use triac in multiquadrant chopper?

Last Answer : Yes, we can use triac in the multi-quadrant chopper.

Describe triggering circuit for TRIAC using DIAC.

Description : Describe triggering circuit for TRIAC using DIAC.

Last Answer : Triggering circuit for TRIAC using DIAC: DIAC stands for diode alternating current. It's a two terminal four layer bidirectional device. It conducts in both directions. DIAC is used for triggering TRIAC. ... of DIAC to the gate terminal of TRIAC reduces the harmonics.

Can you recharge a mostly dead 9 volt battery by plugging a fresh one into the terminals?

Description : Can you recharge a mostly dead 9 volt battery by plugging a fresh one into the terminals?

Last Answer : you’ll end up ruining both and possibly start a fire.

Name the two terminals of the East-West corridor. -Geography

Description : Name the two terminals of the East-West corridor. -Geography

Last Answer : The two terminals of the East-West corridor are Silcher in Assam and Porbandar in Gujarat.

Why is rust removed from battery terminals ?

Last Answer : Rust interferes with satisfactory electrical connection and over time rust falls through the terminal and completely destroys the terminal.

How many structures are supported by cartilaginous rings ? Larynx, Trachea, Bronchi, Initial bronchioles, Terminals bronchioles, Alveolar duct, Alveol

Description : How many structures are supported by cartilaginous rings ? Larynx, Trachea, Bronchi, Initial bronchioles, Terminals bronchioles, Alveolar duct, Alveol

Last Answer : How many structures are supported by cartilaginous rings ? Larynx, Trachea, Bronchi, Initial bronchioles, Terminals bronchioles ... . 7 B. 3 C. 4 D. 5

When a resistance of `2 Omega` is placed across the terminals of a battery, the current is 0.5 A. When the resistance across the terminals of the batt

Description : When a resistance of `2 Omega` is placed across the terminals of a battery, the current is 0.5 A. When the resistance across the terminals of the batt

Last Answer : When a resistance of `2 Omega` is placed across the terminals of a battery, the current is 0 ... emf of the battery and also its internal resistance.

The potenital difference between the terminals of a 6.0 V battery is 7.2 V when it is being charged by a current of 2.0 A. What is the internal resist

Description : The potenital difference between the terminals of a 6.0 V battery is 7.2 V when it is being charged by a current of 2.0 A. What is the internal resist

Last Answer : The potenital difference between the terminals of a 6.0 V battery is 7.2 V when it is being ... A. What is the internal resistance of the resistor.

The potential differnce between the terminals of a battery of emf 6.0 V and internal resistance `1 Omega` drops to 5.8 V when connected across an exte

Description : The potential differnce between the terminals of a battery of emf 6.0 V and internal resistance `1 Omega` drops to 5.8 V when connected across an exte

Last Answer : The potential differnce between the terminals of a battery of emf 6.0 V and internal resistance ... resistor . Find the resistance of the external res

The reading of a voltmoter when a cell is connected to it is 2.2 V. When the terminals of the cell are connected to a resistance of `4 Omega`, the vol

Description : The reading of a voltmoter when a cell is connected to it is 2.2 V. When the terminals of the cell are connected to a resistance of `4 Omega`, the vol

Last Answer : The reading of a voltmoter when a cell is connected to it is 2.2 V. When the terminals of the ... to 2 V. Find the internal resistance of the cell.

Assertion : Potential difference across the terminals of a battery is always less than the emf of the battery. Reason : During discharging of a batter

Description : Assertion : Potential difference across the terminals of a battery is always less than the emf of the battery. Reason : During discharging of a batter

Last Answer : Assertion : Potential difference across the terminals of a battery is always less than the emf of the ... . If Assertion is false but Reason is true.

If each of the resistance in the network in figure `R`, the equivalent resistance between terminals `A` and `B` is

Description : If each of the resistance in the network in figure `R`, the equivalent resistance between terminals `A` and `B` is

Last Answer : If each of the resistance in the network in figure `R`, the equivalent resistance between terminals `A` and `B` is A. R B. 5R C. 3R D. 6R

A battery of emf E has an internal resistance r. A variable resistacne R is connected to the terminals of the battery. A current `i` is drawn from the

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Last Answer : A battery of emf E has an internal resistance r. A variable resistacne R is connected to the terminals of ... infinity, `(E)/(r)`, V approaches E

What Molecules of what substances are stored in synaptic terminals?

Description : What Molecules of what substances are stored in synaptic terminals?

Last Answer : Need answer

When wires are connected to the terminals of the battery what causes electric current in the circuit?

Description : When wires are connected to the terminals of the battery what causes electric current in the circuit?

Last Answer : The energy stored in the chemicals of the battery

In the IBM PC-At, what do the words AT stand for A) Additional Terminals B) Advance technology C) Applied technology D) Advanced terminology

Description : In the IBM PC-At, what do the words AT stand for A) Additional Terminals B) Advance technology C) Applied technology D) Advanced terminology

Last Answer : Answer : B

A group of magnetic tapes, videos or terminals usually under the control of one master is A) Cylinder B) Surface C) Track D) Cluster

Description : A group of magnetic tapes, videos or terminals usually under the control of one master is A) Cylinder B) Surface C) Track D) Cluster

Last Answer : Answer : D

The computer code for the interchange of information between terminals is A) ASCII B) BCD C) EBCDIC D) All of above

Description : The computer code for the interchange of information between terminals is A) ASCII B) BCD C) EBCDIC D) All of above

Last Answer : Answer : A

Multi user systems provided cost savings for small business because they use a single processing unit to link several A) Personal computers B) Workstations C) Dumb terminals D) Mainframes

Description : Multi user systems provided cost savings for small business because they use a single processing unit to link several A) Personal computers B) Workstations C) Dumb terminals D) Mainframes

Last Answer : Answer : C

Terminals are represented by diagonals in a flowchart. a) True b) False

Description : Terminals are represented by diagonals in a flowchart. a) True b) False

Last Answer : Answer: b Explanation: The statement is false. Terminals are represented by rounded rectangles. They indicate the starting or ending point in a flowchart

Trans-Siberian Railway terminals are - (1) Moscow and Vladivostok (2) St. Petersburg and Vladivostok (3) Moscow and Krasnoyarsk (4) St. Petersburg and Krasnoyarsk

Description : Trans-Siberian Railway terminals are - (1) Moscow and Vladivostok (2) St. Petersburg and Vladivostok (3) Moscow and Krasnoyarsk (4) St. Petersburg and Krasnoyarsk

Last Answer : (1) Moscow and Vladivostok Explanation: Trans-Siberian Railway is a network of railways connecting Moscow with the Russian Far East and the Sea of Japan. En route it passes through ... Yekaterinburg, Omsk, Novosibirsk, Krasnoyarsk, Irkutsk, Chita and Khabarovsk to Vladivostok via southern Siberia.

How many terminals do an electric cell has? (1) 1 (2) 2 (3) 3 (4) 4

Description : How many terminals do an electric cell has? (1) 1 (2) 2 (3) 3 (4) 4

Last Answer : (2) 2 Explanation: The metal disc is the negative terminal. All electric cells have two terminals; a positive terminal and a negative terminal.

Graphical terminals are divided into two types. They are _____ (A) text and dumb (B) dumb and intelligent (C) vector mode and raster mode (D) None of the Above

Description : Graphical terminals are divided into two types. They are _____ (A) text and dumb (B) dumb and intelligent (C) vector mode and raster mode (D) None of the Above

Last Answer : (C) vector mode and raster mode

For expanding access to banking services, the RBI has advised banks to open branches with minimum infrastructure support of 8 to 10BC units at a reasonable 3-4km. Such branches are known as _______ A. White Label ATMs B. Ultra Small Branches C. Banking Kiosks D. CBS Terminals E. ICT Hubs

Description : For expanding access to banking services, the RBI has advised banks to open branches with minimum infrastructure support of 8 to 10BC units at a reasonable 3-4km. Such branches are known as _______ A. White Label ATMs B. Ultra Small Branches C. Banking Kiosks D. CBS Terminals E. ICT Hubs

Last Answer : B. Ultra Small Branches Explanation: Ultra Small Branches may be set up between the base branch and BC locations so as to provide support to about 8-10 BC Units at a reasonable distance ... for operating large customer transaction and would have to be managed full time by bank officers/ employees.

What is the calculated voltage at the positive and negative terminals of the battery shown in the illustration if each cell has a voltage of 1.5 volts? EL-0034 A. 1.5 volts B. 3.0 volts C. 6.0 volts D. 12.0 volts

Description : What is the calculated voltage at the positive and negative terminals of the battery shown in the illustration if each cell has a voltage of 1.5 volts? EL-0034 A. 1.5 volts B. 3.0 volts C. 6.0 volts D. 12.0 volts

Last Answer : Answer: A

An open occurring within the field rheostat of an AC generator can be detected by short circuiting its terminals and observing a ____________. A. negative deflection of the wattmeter pointer B. positive deflection of the wattmeter pointer C. buildup of alternator voltage D. low, but constant alternator voltage

Description : An open occurring within the field rheostat of an AC generator can be detected by short circuiting its terminals and observing a ____________. A. negative deflection of the wattmeter pointer B. ... of the wattmeter pointer C. buildup of alternator voltage D. low, but constant alternator voltage

Last Answer : Answer: C

The removal of paint from electrical equipment, such as generators, should be cautiously undertaken because ____________. A. the mechanical shock of paint removal lessens the dielectric strength of the insulation B. the paint dust is composed of abrasive and semi-conducting materials which impair insulation C. paint dust buildup has a tendency to cause corrosion D. phase windings frequently become isolated from each other due to dust interference at the terminals

Description : The removal of paint from electrical equipment, such as generators, should be cautiously undertaken because ____________. A. the mechanical shock of paint removal lessens the dielectric strength ... phase windings frequently become isolated from each other due to dust interference at the terminals

Last Answer : Answer: B

In the illustration, the signal from the device connected to terminals 18 and 19 is __________. EL-0046 A. prime mover speed feedback B. loss of control alarm when comparing with the input signal from the resistor at the top of the speed sensing circuit card C. hall effect current to detect slip between the prime mover and the alternator D. to shut down the prime mover if overspeeding

Description : In the illustration, the signal from the device connected to terminals 18 and 19 is __________. EL-0046 A. prime mover speed feedback B. loss of control alarm when comparing with the input signal ... slip between the prime mover and the alternator D. to shut down the prime mover if overspeeding

Last Answer : Answer: A

The turns ratio of transforme 'A' shown in the illustration is four to one and all taps are evenly spaced. If 110 volts were applied to terminals 'X1' and 'X3', what would be indicated across 'H1' and 'H2'? EL-0082 A. 37.5 volts B. 55 volts C. 220 volts D. 440 volts

Description : The turns ratio of transforme 'A' shown in the illustration is four to one and all taps are evenly spaced. If 110 volts were applied to terminals 'X1' and 'X3', what would be indicated across 'H1' and 'H2'? EL-0082 A. 37.5 volts B. 55 volts C. 220 volts D. 440 volts

Last Answer : Answer: C

The turns ratio of transformer 'A' shown in the illustration is four to one and all taps are evenly spaced. If 120 volts were applied to terminals 'H1' and 'H3', what would appear at 'X1' and 'X2'? EL-0082 A. 15 volts B. 30 volts C. 480 volts D. 960 volts

Description : The turns ratio of transformer 'A' shown in the illustration is four to one and all taps are evenly spaced. If 120 volts were applied to terminals 'H1' and 'H3', what would appear at 'X1' and 'X2'? EL-0082 A. 15 volts B. 30 volts C. 480 volts D. 960 volts

Last Answer : Answer: A