modify the wrong part if False, please underline twice your answer if True or False.  The current that flows in the armature of a DC generator is DC in nature.

Q: Flashing the field of a direct current generator implies   Neutralising residual magnetism…

A: Flashing the field of a direct current generator implies that

Q: uèstion 7 A shunt generator running at 1000 r.p.m. has generated e.m.f. as 300 V. If the speed…

A: In this question, choose the correct option What is emf at speed = 1200rpm

Q: An ideal dc generator has regulation of 40% O 20% 30% O Zero

A:

Q: Out of the following four sources of losses in a dc generator which one is minimum? O Copper losses…

A: We need to select correct option for losses in dc generator .

Q: A three-winding transformer is connected to an AC voltage source as shown in the figure. The number…

A: Given- 3 winding transformer, Number of turns- N1=100,N2=50,N3=50, Currents in secondary side- 2∠30o…

Q: A dc 4 pole lap wound generator is running at 10o00 rpm having 1200 conductors and flux density is…

A: Given  Pole P=4 lap A= P=4 N=1000 rpm Z=1200  φ= 10mwb

Q: Indicate whether the following - statement are true or false

A: in the DC machine the emf can be calculated using the following equation  E = ∅ZPN60 A

Q: A DC generator with 8 pole, duplex lap winding excited with a flux of 3mWb/ pole. The number of…

A: Given: A DC generator with number of pole, P=8. Multiplexity of lap winding, m = 2 (duplex winding).…

Q: True or False: In a DC Machine, the field windings can only be found at the Stator

A: In DC motor the field winding is on the stator of the motor and the armature winding is on the rptpr…

Q: The process of voltage buildup applies to separately-excited dc generator. True or False?

A: The answer is false.

Q: If we need to use a DC generator witha very good voltage regulation we choose: * DC Generators…

A:

Q: Q- In a DC generator, what will be change in emf induced if flux is reduced by 20% and the speed is…

A: Given -  Flux reduced by - 20%, Speed increased by - 20%,   To find -  Change in EMF.

Q: 4-Is the residual magnetism on the generator is necessary how can you cancel these residual…

A: The residual magnetism in the generator is necessary because it helps in the voltage build-up of the…

Q: The generated emf

A:

Q: For dc machines, the series field windings have many turns of fine wire true False

A:

Q: In a 2 pole lap winding dc machine , the resistance of one conductor is 2Ω and total number of…

A: Given: A dc machine has, Total number of pole, P = 2. Resistance of one conductor, r = 2 Ω. Total…

Q: A dc 4 pole lap wound generator is running at 1000 rpm having 1200 conductors and flux density is 10…

A: Given that  A dc Lap wound generator having total conductor Z = 1200   speed or number of revolution…

Q: A magnetic ring has reluctance of 1.675 x 106 AT weber. The flux to be produced by the coil is 800 x…

A: Given a magnetic ring has, Reluctance = 1.675×106 ATweber Flux = 800×10-6 weber.

Q: 1. If the number of poles in a lap wound generator is doubled, then the generated emf will be a)…

A: Given: Number of poles in lap wound generator are doubled.

Q: A short shunt compound generator supplies a load of 20 kW at 500 V. The armature, series and shunt…

A: Load current = power delivered to load/ terminal voltage voltage.  Power developed = armature…

Q: Shunt field winding is thin wire of many turns. True or False

A:

Q: What is the benefit of electrical transformers if there is a load and if there is no load?

A: Transformer: Transformer is a static electrical device which is used to transfer the power from one…

Q: A 6 pole DC lap wound generator has 41 armature conductors with flux per pole is 23 mWb and the…

A:

Q: Armature windings in ac generators are same as those used in DC machines Select one: O True O False

A: Armature is a conductor which carries the current.

Q: The simplex lap DC generator has 4 poles, 16 slots, with a constant rpm of 600 rpm and 4 conductors…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: The field system is the rotating part of the DC Generator Select one: True False

A: In DC machine rectification of power (i.e. from AC to DC or viceversa ) is done by the commutator.…

Q: A 50kW, 500V short shunt generator has an armature resistance, series field resistance and shunt…

A:

Q: A 6 pole DC lap wound generator has 38 armature conductors with flux per pole is 42 mWb and the…

A: Generated voltage = flux×speed× No. of conductors×No. of polesNo. of parallel paths. For Lap…

Q: What is the operation of a dc generator? Create a bulleted set of information

A: Electrical machines can be either generator or motors. They can be either Ac machines or DC…

Q: Question No.4 A dc generator has an armature emf of 100 V when useful flux/pole is 20 mWb, and a…

A: Given: A DC generator has An armature emf, E1=100 V Useful flux, φ1=20 mWb At speed, N1=800 rpm Then…

Q: True or False: In a dc generator, the armature current is a direct current

A: There are two source of magnetic flux that are present in DC machine, armature flux and main field…

Q: The armature of a two-pole generator is rotating at 3600 r/min. The armature has a simplex lap…

A: Generated emf = ((flux× speed× no. Of armature conductors)/60)×(poles/ parallel paths).