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Yes DIAC can conduct in both direction.
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Description :

what is DIAC?

Answer :

DIAC is a two terminal and four layer device most DIAC have three terminals. DIAC stands for diode for alternating current. It conducts in both direction. It is also used for triggering triac.

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100 views 1 answer
Description :

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

Answer :

(i) LASCR:  (ii) DIAC:  (iii) TRIAC: 

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886 views 1 answer
Description :

Describe triggering circuit for TRIAC using DIAC.

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.

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181 views 1 answer
Description :

Explain the need and steps to conduct the reduced voltage running up test on the three phase induction motor.

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65 views 0 answers
Description :

Answer :

The direction of rotation of a D.C. series motor can be changed by interchanging field terminals.

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79 views 1 answer
Description :

Answer :

Direction of rotation of a split phase motor can be reversed by reversing the connection of either running winding or starting winding.

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184 views 1 answer
Description :

Answer :

The direction of rotation of universal motor can be reversed the by reversing the flow of current through either armature winding or field winding.

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123 views 1 answer
Description :

How can we reverse the direction of rotation of synchronous motor?

Answer :

By reversing supply phase sequence we can reverse the direction of rotation of synchronous motor.

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225 views 1 answer
Description :

In a single-phase induction motor, the operating direction is determined by the ________ A) Rotor B) Stator C) Starting circuit D) None of these

Answer :

In a single-phase induction motor, the operating direction is determined by the Starting circuit

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84 views 1 answer
Description :

What happens when you reverse the direction of the current in an electromagnet?

Answer :

When  you  reverse  current  direction  in  an  electromagnet,  the magnetic  poles  will  also  change.

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89 views 1 answer
Description :

What is the direction of flow of electric current in an electric circuit?

Answer :

It  flows  from  anode  to  cathode  (direction  of   holes  flow)

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152 views 1 answer
Description :

why current flows in opposite direction of electrons?

Answer :

Hi team, the current flow is nothing but flow of electrons But the conventional direction I'd opposite to actual current flow . ..

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102 views 1 answer
Description :

How does AC current change direction?

Answer :

This  is  because  the  angle  at  which  the   magnetic  fields  cuts  across  a  winding  changes  its  poles  thus  current  has  to  change  dirention  .

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75 views 1 answer
Description :

What is the direction of the induced electric field?

Answer :

It  is  in  opposite  direction   to  the  one  that   produced  it.

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57 views 1 answer
Description :

What is the direction of an AC current?

Answer :

The magnitude and direction of alternating current is changes with respect to time. So for half cycle it is positive and for next half cycle it is negative.

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2.6k views 2 answers
Description :

What is the direction of the induced current?

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72 views 0 answers
Description :

What is the direction of the electric field?

Answer :

Electric   field    is  at   right angle   widh  flow  of  current  (right  hand   rule).

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108 views 1 answer
Description :

What is the direction of flow of current?

Answer :

Current  flows  from  anode  to  cathode(opposite  direction  to  flow of  electrons)

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77 views 1 answer
Description :

What is the direction of the flow of electrons?

Answer :

Electrons  flow    cathode   to   anode  or  in   an  oposite  direction  of   convection  current  flow  or  holes.

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98 views 1 answer
Description :

What is the direction of the conventional current flow?

Answer :

The conventional current flow in opposite direction of flow of electrons. The electrons flow from negative terminal of battery to positive terminal of battery. And conventional current flow from positive terminal of battery to negative terminal of battery.

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85 views 1 answer
Description :

In a synchronous machine, if the field flux axis ahead of the armature field axis in the direction of rotation, the machine is operating as  (1) synchronous motor (2) synchronous generator (3) asynchronous motor (4) asynchronous generator

Answer :

In a synchronous machine, if the field flux axis ahead of the armature field axis in the direction of rotation, the machine is operating as synchronous generator 

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367 views 1 answer
Description :

Answer :

In case of a shaded pole motor the direction of rotation of the motor is from main pole to shaded pole.

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125 views 1 answer
Description :

Two non-collinear parallel equal forces acting in opposite direction?

Answer :

Two non-collinear parallel equal forces acting in opposite direction constitute a couple.

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Description :

Answer :

In repulsion motor direction of rotation of motor is the same as that of brush shift.

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Description :

What is the direction of flow when charging a capacitor?

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Description :

The direction of rotation of an inverter fed 3-phase ac motor is reversed by (A) a mechanical reversing switch (B) reversing the input dc link voltage (C) operating the inverter as a rectifier (D) changing the sequence of switching

Answer :

The direction of rotation of an inverter fed 3-phase ac motor is reversed by changing the sequence of switching

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129 views 1 answer
Description :

Answer :

The direction of rotation of an hysteresis motor is determined by position of shaded pole with respect to main pole.

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Description :

Answer :

Thyristor conducts when the anode voltage is greater than cathode and when the current provided to Gate.

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Description :

Answer :

Diode conducts when the anode voltage is greater than the cathode voltage.

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75 views 1 answer
Description :

The -------can conduct current in either direction and is turned-on when the breakover voltage is exceeded  A) SCR B) Diac  C) SCS D) Traic

Answer :

The diac  can conduct current in either direction and is turned-on when the breakover voltage is exceeded.

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86 views 1 answer
Description :

Which one of the following can truthfully be said of non-school, active agencies of social interaction? Options: A) The less education people have, the more they use established recreational agencies B) The largest items of the expenditure for leisure time activities are for those of a passive nature C) Adult sponsorship of youth serving organizations has proved undesirable D) The community council should conduct activities, not just to co-ordinate them

Answer :

B) The largest items of the expenditure for leisure time activities are for those of a passive nature

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10 views 1 answer
Description :

TRIAC is an ac switch which can be made to conduct on

Answer :

TRIAC is an ac switch which can be made to conduct on both half cycle of AC voltage.

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57 views 1 answer
Description :

A Superfast train overtakes two persons walking along a railway track. The first one walks at 9 km/hr. The other one walks at 10.8 km/hr. The train needs 16.8and 17seconds respectively to overtake them. What is the speed of the train if both the persons are walking in the same direction as the train? A) 250 kmph B) 487kmph C) 162kmph D) 312kmph

Answer :

ANSWER:C Explanation:  Given that the first one walks at 9 km/hr convert the speed in the unit of m/sec  9 km/hr = (9*5/18) m/s  = 5/2 m/s  = 2.5 m/s  Another one walks at 10.8 km/hr ... the speed in the unit of km/hr  Speed of the train = (45*18/5)kmph  Speed of the train = 162 km/ hr

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9 views 1 answer
Description :

 A train overtakes two girls walking along a railway track. The first girl walks at 9 km/hr. The other girl walks at 10.8 km/hr. The train needs 16.8 and 17 seconds respectively to overtake them. What is the speed of the train if both the girls are walking in the same direction as the train? A) 25 m/s B) 45 m/s C) 30m/s D) 40m/s

Answer :

ANSWER:B Explanation:  First girl speed = 9km/hr  = 9 * 5 / 18 m/s  = 5/2 m/s  = 2.5 m/s  second girl speed = 10.8 km/hr  = 10.8 * 5/18 m/s  = 54/18  = 3 m/s  Let the speed of the train ... x - 3) * 17  16.8x - 42 = 17x - 51  0.2x = 9  x = 45  Therefore the speed of the train is 45 m/s

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10 views 1 answer
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38 views 0 answers
Description :

Two vectors are said to be equal if (1) only their magnitudes are same (2) only their directions are same (3) both magnitude and direction are same (4) magnitudes are same but directions are opposite 

Answer :

both magnitude and direction are same

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10 views 1 answer
Description :

The direction of inducted e.m.f. can be found with the help of (a) Fleming’s right hand rule (b) Kirchhoff’s voltage law (c) Lenz’s law (d) Laplace’s law  

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46 views 0 answers
Description :

Direction of rotation of three phase induction motor can be reversed by   (a) interchanging connections of any two phases (b) disconnecting any one phase (c) (a) and (b) both (d) None of the above 

Answer :

The direction of rotation of 3-phase induction motor is reversed by Changing the phase sequence of supply.  OR  The direction of rotation of 3-phase induction motor is reversed by inter-changing any two phase connections of motor terminals with supply terminals.

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97 views 2 answers
Description :

how can we reverse the direction of rotation of three phase induction motor ?

Answer :

The direction of rotation of three phase induction motor can be reversed by plugging i.e by changing any two out of three phases of the supply to the stator of the Induction motor terminal.

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108 views 1 answer
Description :

Answer :

A Diac is an AC switch

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28 views 1 answer
Description :

DIAC DIAC DIAC

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16 views 0 answers
Description :

The swing of a spinning cricket ball in air can be explained on the basis of (1) Sudden change in wind direction. (2) Buoyancy of air. (3) Turbulence caused by wind. (4) Bernoulli’s theorem.

Answer :

Turbulence caused by wind.

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7 views 1 answer
Description :

A 250 m goods train takes 50 s to cross a person who is going in the same direction with the speed of 8 km/h. After crossing that person, the train can reach next station in 2 hr. How long that person takes to reach that station after being crossed by them? A) 2 ½ hr B) 5hr C) 3 1/2hr D) 1hr

Answer :

ANSWER:A Explanation:  Speed of the person = 8 kmph  = (8*5/18)m/s  = 20/9 m/s  Then relative speed of train = (x-20/9)m/s  As train takes 50 sec to cross the person  Therefore 50 =250/(x-20/ ... 20,000 m  = 20 km Thus time taken by the person to cover the distance of 20km= 20/8 hr=2 ½ hr

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19 views 1 answer
Description :

The purpose of value education is best served by focusing on (A) Cultural practices prevailing in the society. (B) Norms of conduct laid down by a social group (C) Concern for human values (D) Religious and moral practices and instructions.

Answer :

(C) Concern for human values 

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5 views 1 answer
Description :

Most of the Universities in India (A) conduct teaching and research only (B) affiliate colleges and conduct examinations (C) conduct teaching/research and examinations (D) promote research only 

Answer :

Answer: C Most of the Universities in India conduct teaching/research and examinations. 

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5 views 1 answer
Description :

1. With which India's progress has been reasonably satisfactory in connection? 2. Critical criteria for the location of an aluminium plant in India are the availability of which things? 3. From which place did the Aryans came to India? 4. Sound become hazardous noise pollution at which level? 5. Who is to conduct the ... construction' of the famous Kailasa rock-cut temple at Ellora ? 19. What is the mean of Epigraphy? 20. Entamoeba histolytica is found in which part of man?

Answer :

Answer : 1. Growth of GNP 2. Bauxite and electricity 3. Central Asia 4. Above 80 dB 5. State Election Commission 6. Copper 7. Centigrade 8. Divyavadana 9. Chennai 10. Henry Ford 11. Physalia 12. Argon ... . 6.2 1018 16. Taxation 17. Punjab 18. Krishna-I 19. The study of inscriptions 20. Intestine

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7 views 1 answer
Description :

Diamond does not conduct electricity, because (1) It’s structure is very compact (2) It is of crystalline nature (3) There are only carbon atoms present in it (4) No free electrons are present in it

Answer :

No free electrons are present in it

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6 views 1 answer
Description :

Which of the following motors can run on both AC and DC? A) Universal motor B) Dual wattage motor C) Flexible motor D) All the above

Answer :

Which of the following motors can run on both AC and DC? A) Universal motor B) Dual wattage motor C) Flexible motor D) All the above

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122 views 1 answer
Description :

Consider the following statements with regard to induction type wattmeter :  1. Can be used on both ac and dc systems.  2. Power consumption is relatively low.  3. It is accurate only at stated frequency and temperature.  Which of the above statements is/are correct ?  (a) 1 only (b) 2 only (c) 3 only (d) 1, 2 and 3

Answer :

Consider the following statements with regard to induction type wattmeter :  1. Can be used on both ac and dc systems.  2. Power consumption is relatively low.  3. It is accurate only at stated frequency and temperature. ... correct ?  (a) 1 only (b) 2 only (c) 3 only (d) 1, 2 and 3

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148 views 1 answer
Description :

Answer :

Yes, Induction heating is used for both magnetic and non-magnetic materials.

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