What is a machine that produces electrical energy by turning coils of wire around powerful magnets?

What is a machine that produces electrical energy by turning coils of wire around powerful magnets?
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A synchronous motor maintains synchronism with the rotating field because _____________. A. field strength varies directly with rotor slip B. DC current applied to the rotor coils causes the rotor magnets to lock in with the rotating flux of the stator C. the stator poles are dragged around due to the flux created by the excitation current D. the stator flux rotates in the opposite direction

Description : A synchronous motor maintains synchronism with the rotating field because _____________. A. field strength varies directly with rotor slip B. DC current applied to the rotor coils causes the rotor ... the flux created by the excitation current D. the stator flux rotates in the opposite direction

Last Answer : Answer: B

As shown in the illustration, all 'MS' contacts are opened and closed by means of ________. EL-0073 A. operating coils B. magnets C. manual operation of the master switches D. solenoid switches

Description : As shown in the illustration, all 'MS' contacts are opened and closed by means of ________. EL-0073 A. operating coils B. magnets C. manual operation of the master switches D. solenoid switches

Last Answer : Answer: C

Air gap readings should be taken periodicly on electrical generation equipment to __________. A. determine the amount of varnish that can be applied to correct insulation problems B. determine the condition of the bearings C. provide for the correct proper tightening of the field coil bolts and correct lateral adjustment of the field coils D. increase machine efficiency

Description : Air gap readings should be taken periodicly on electrical generation equipment to __________. A. determine the amount of varnish that can be applied to correct insulation problems B. determine the ... field coil bolts and correct lateral adjustment of the field coils D. increase machine efficiency

Last Answer : Answer: B

Alinco, which is a aluminium-cobalt-nickel steel, is used for making (A) Surgical instruments (B) Powerful magnets (C) Chemical equipments (D) Boiler tubes

Description : Alinco, which is a aluminium-cobalt-nickel steel, is used for making (A) Surgical instruments (B) Powerful magnets (C) Chemical equipments (D) Boiler tubes

Last Answer : (B) Powerful magnets

The frequency of an alternator at a given RPM is determined by the _____________. A. number of turns of wire in the armature coil B. number of magnetic poles C. strength of the magnets used D. output voltage

Description : The frequency of an alternator at a given RPM is determined by the _____________. A. number of turns of wire in the armature coil B. number of magnetic poles C. strength of the magnets used D. output voltage

Last Answer : Answer: B

The frequency output of an operating alternator is controlled by the _____________. A. relative speed of the rotor poles B. number of turns of wire in the armature coil C. strength of the magnets used D. output voltage

Description : The frequency output of an operating alternator is controlled by the _____________. A. relative speed of the rotor poles B. number of turns of wire in the armature coil C. strength of the magnets used D. output voltage

Last Answer : Answer: A

One factor that determines the frequency of an alternator is the ____________. A. number of turns of wire in the armature coil B. number of magnetic poles C. strength of the magnets used D. output voltage

Description : One factor that determines the frequency of an alternator is the ____________. A. number of turns of wire in the armature coil B. number of magnetic poles C. strength of the magnets used D. output voltage

Last Answer : Answer: B

How do magnets and copper wire make electricity?

Description : How do magnets and copper wire make electricity?

Last Answer : According  to  Faradays  law , a changing  magnetic  field  on  a  conductor  induses  current  in  the  conductor  through   mutual  induction.

Hard ferrites are used for making (A) Transformer cores. (B) Electrical machinery. (C) High frequency equipment. (D) Light weight permanent magnets.

Description : Hard ferrites are used for making (A) Transformer cores. (B) Electrical machinery. (C) High frequency equipment. (D) Light weight permanent magnets.

Last Answer : (D) Light weight permanent magnets.

Two circular coils 1 and 2 are made from the same wire but the radius of the 1st coil is twice that of the 2nd coil. What is the ratio of potentail di

Description : Two circular coils 1 and 2 are made from the same wire but the radius of the 1st coil is twice that of the 2nd coil. What is the ratio of potentail di

Last Answer : Two circular coils 1 and 2 are made from the same wire but the radius of the 1st coil is twice that of the 2nd coil ... the same? A. 3 B. 4 C. 6 D. 2

The maximum shear stress in spring wire is induced at (A) Inner surface of the coil (B) Outer surface of the coil (C) Central surface of the coil (D) End coils

Description : The maximum shear stress in spring wire is induced at (A) Inner surface of the coil (B) Outer surface of the coil (C) Central surface of the coil (D) End coils

Last Answer : (A) Inner surface of the coil

If number of coils are 8 and wire diameter of spring 3mm, then solid length is given by? a) None of the listed b) 27mm c) 24mm d) 21mm

Description : If number of coils are 8 and wire diameter of spring 3mm, then solid length is given by? a) None of the listed b) 27mm c) 24mm d) 21mm

Last Answer : c) 24mm

A compression spring is made of music wire of 2 mm diameter having a shear strength and shear modulus of 800 Mpa and 80 Gpa respectively. The mean coil diameter is 20mm, free length is 40 mm, and the number of active coils is 10. If the mean coil diameter is reduced to 10 mm, the stiffness of the spring is approximately a. increased by 8 times b. decreased by 2 times c. increased by 2 times d. decreased by 8 times

Description : A compression spring is made of music wire of 2 mm diameter having a shear strength and shear modulus of 800 Mpa and 80 Gpa respectively. The mean coil diameter is 20mm, free length is 40 mm, and the number ... by 8 times b. decreased by 2 times c. increased by 2 times d. decreased by 8 times

Last Answer : a. increased by 8 times

Find total number coils in a spring having square and ground ends. Deflection in the spring is 6mm when load of 1100N is applied. Modulus of rigidity is 81370N/mm². Wire diameter and pitch circle diameter are 10mm and 50mm respectively. a) 7 b) 6 c) 5 d) 4

Description : Find total number coils in a spring having square and ground ends. Deflection in the spring is 6mm when load of 1100N is applied. Modulus of rigidity is 81370N/mm². Wire diameter and pitch circle diameter are 10mm and 50mm respectively. a) 7 b) 6 c) 5 d) 4

Last Answer : a) 7

Determine number of coils in a helical compression spring, if modulus of rigidity is 80 Gpa and spring stiffness is 50 N/ mm. Assume wire diameter and spring index as 8 mm and 5 respectively a. 11.8 turns b. 12.8 turns c. 13.3 turns d. None of the above

Description : Determine number of coils in a helical compression spring, if modulus of rigidity is 80 Gpa and spring stiffness is 50 N/ mm. Assume wire diameter and spring index as 8 mm and 5 respectively a. 11.8 turns b. 12.8 turns c. 13.3 turns d. None of the above

Last Answer : b. 12.8 turns

The coils of D.C. motor starter are wound with wire of?

Description : The coils of D.C. motor starter are wound with wire of?

Last Answer : The coils of D.C. motor starter are wound with wire of manganin.

Why do two aton magnets work the other way around?

Description : [img] https:///wp-content/uploads/2017/02/Fénykép-0073_1.jpg [/ img] is this the reverse operation?

Last Answer : It's really weird, because the magnetism is basically constant. Each magnet has 2 poles. I think it can only be that they are in different positions relative to each other in the holder.   

Which of the methods listed is used to start a AC generator turning? A. Residual magnetism remaining in the field poles. B. Residual magnetism remaining in the field coils. C. Residual magnetism remaining in the armature. D. Rotation by a mechanical prime mover.

Description : Which of the methods listed is used to start a AC generator turning? A. Residual magnetism remaining in the field poles. B. Residual magnetism remaining in the field coils. C. Residual magnetism remaining in the armature. D. Rotation by a mechanical prime mover.

Last Answer : Answer: D

If coil 'R1-R2' on the transmitter in figure 'A' shown in the illustration is turned 30 degrees clockwise, corresponding coil 'R1-R2' on the receiver should ____________. EL-0092 A. make coils 'S1-S2-S3' turn faster because of induced currents B. ring at the receiving station until the turning stops C. receive a higher voltage depending on the turns ratio D. align itself to the same position if free to move

Description : If coil 'R1-R2' on the transmitter in figure 'A' shown in the illustration is turned 30 degrees clockwise, corresponding coil 'R1-R2' on the receiver should ____________. EL-0092 A. make coils 'S1 ... a higher voltage depending on the turns ratio D. align itself to the same position if free to move

Last Answer : Answer: D

You have discovered a new celestial body. It has a thick atmosphere and it produces powerful cosmic winds and, when observed, the clouds obscure the body. You have determined it is this type of star. A. Wolf-Rayet star (Answer) B. Red supergiant C. Stellar storm D. Pulsar

Description : You have discovered a new celestial body. It has a thick atmosphere and it produces powerful cosmic winds and, when observed, the clouds obscure the body. You have determined it is this type of star. A. Wolf-Rayet star (Answer) B. Red supergiant C. Stellar storm D. Pulsar

Last Answer : A. Wolf-Rayet star (Answer)

How The solar wind can interact with Earths magnetic field to create powerful electrical currents that cause what near the poles?

Description : How The solar wind can interact with Earths magnetic field to create powerful electrical currents that cause what near the poles?

Last Answer : Need answer

What is one way to store a lot of potential energy in the magnetic field of the two interacting magnets?

Description : What is one way to store a lot of potential energy in the magnetic field of the two interacting magnets?

Last Answer : You can store energy in a rubber band by stretching it, and this potential energy becomes kinetic energy when you let go

The use of permanent magnets is. not made in (a) magnetoes (6) energy meters (c) transformers (d) loud-speakers

Description : The use of permanent magnets is. not made in (a) magnetoes (6) energy meters (c) transformers (d) loud-speakers

Last Answer : (c) transformers

What semiconductor device produces electrical energy when exposed to light?

Description : What semiconductor device produces electrical energy when exposed to light?

Last Answer : Photovoltaic cell.

If conductor pass energy then my question is that heat energy change int electrical of wire?

Description : If conductor pass energy then my question is that heat energy change int electrical of wire?

Last Answer : Conductor losses or "I squared R losses" occur when electric current flows through a conductor. Conductor loss in watts equals the square of the current in amperes (I2) multiplied by the resistance of the conductor in ohms (R), and each watt of electrical energy is equal to 1 joule of heat.

Which company offers the LISP machine considered “the most powerful symbolic processor available”? a) LMI b) Symbolics c) Xerox d) Texas Instruments

Description : Which company offers the LISP machine considered “the most powerful symbolic processor available”? a) LMI b) Symbolics c) Xerox d) Texas Instruments

Last Answer : b) Symbolics

A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial load W, the energy stored in the spring, is (A) 4WD²n/d 4N (B) 4W²Dn/d 4N (C) 4W²D3n/d 4N (D) 4W²D3n²/d 4N

Description : A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial  load W, the energy stored in the spring, is  (A) 4WD²n/d 4N (B) 4W²Dn/d 4N (C) 4W²D3n/d 4N (D) 4W²D3n²/d 4N

Last Answer : (C) 4W²D3n/d 4N

What is the machine that converts mechanical energy or motion into electrical energy?

Description : What is the machine that converts mechanical energy or motion into electrical energy?

Last Answer : generator

What is the machine that converts mechanical energy or motion into electrical energy?

Description : What is the machine that converts mechanical energy or motion into electrical energy?

Last Answer : generator

Why don't magnets lose their magnetism?

Description : Why don't magnets lose their magnetism?

Last Answer : They can if you strike them. Unless it is a permanent magnet.

Are magnets involved in mail delivery?

Description : Are magnets involved in mail delivery?

Last Answer : Only when dealing with love letters & valentine cards, magnets/attraction.

Where can I get really cool car magnets?

Description : Where can I get really cool car magnets?

Last Answer : I have seen these hanging out of the trunk before.

Aren't gravity and magnets related strongly to one another, and if yes, wouldn't that give us our TOE?

Description : Aren't gravity and magnets related strongly to one another, and if yes, wouldn't that give us our TOE?

Last Answer : all I understand this is a naive argument, but it would be a pleasure knowing your take on it :)

Do magnets rust or react with water in any other unpleasant way?

Description : Do magnets rust or react with water in any other unpleasant way?

Last Answer : no, don’t think so.

Does anyone know a good place to find refrigerator magnets?

Description : Does anyone know a good place to find refrigerator magnets?

Last Answer : I usually find them under the refrigerator.

Where can I find STRONG magnets?

Description : Where can I find STRONG magnets?

Last Answer : answer:I would Google "neodymium rare earth magnets" I have never bought them online so I can't provide a link (that I trust) to a specific place to buy them.

Who shows how to make electricity from magnets ?

Description : Who shows how to make electricity from magnets ?

Last Answer : Faraday and Henry show this process.

How many and what are the religions of magnets ?

Description : How many and what are the religions of magnets ?

Last Answer : There are two religions of magnetism, namely, north and south.

What attracts magnets ?

Description : What attracts magnets ?

Last Answer : Reverse national magnet attracts poles.

How many types of artificial magnets ?

Description : How many types of artificial magnets ?

Last Answer : Artificial magnets are magnets that are made in the laboratory using different magnets that are suitable for human work. There are two types of artificial magnets. Namely- 1. Permanent magnet and II. Temporary magnet.

How many types of magnets and what are they ?

Description : How many types of magnets and what are they ?

Last Answer : There are two types of magnets: 1. Natural magnets: Magnets found in nature or in mines are called natural magnets. In the past, natural magnets were called loadstones. 2. Artificial ... made in the laboratory using different magnetic materials suitable for human work are called artificial magnets.

How the hell do magnets work?

Description : Can anyone tell me how magnets work?

Last Answer : There is a lot on wikipedia, just enter a magnet, magnetic dipole or something similar.

Can perpetuum be mobile from magnets?

Description : I wondered how he did something to keep spinning. But I would use magnets for that. It probably can't be? To build a perpetuum mobile.

Last Answer : So draw what you mean. What will move those magnets? The North Pole with the South will attract and what next?

What are statement that are true of magnets?

Description : What are statement that are true of magnets?

Last Answer : A magnet always has two poles.They have a magnetic field.Electromagnets can be made much stronger than permanent magnets.A magnet always has two poles.

Do different liquids affect the strength of magnets?

Description : Do different liquids affect the strength of magnets?

Last Answer : yes i tried and different liquids affect the strength ofmagnets

What type of magnets are produce by running electric current through a soft iron core?

Description : What type of magnets are produce by running electric current through a soft iron core?

Last Answer : electromagnet

What permanent magnets can affect?

Description : What permanent magnets can affect?

Last Answer : Both permanent magnets and electromagnets. -Apex

Are the magnetic lines force of a bar magnets strongest at the end of the magnet or in the middle?

Description : Are the magnetic lines force of a bar magnets strongest at the end of the magnet or in the middle?

Last Answer : Feel Free to Answer

What are three types of magnets?

Description : What are three types of magnets?

Last Answer : They are permanent, temporary and electromagnets