What is the idea of interchanging two lead if the direction of rotation is wrong?

Q: The electric flux through the shaded closed surface can be * :estimated as -2 C -3 C 2 C 4 C -5 C 1C…

A: Ans. -6 Net charge on shaded closes surface gives a electric flux.

Q: We consider a particle of charge q moving in a magnetic field B with a speed v. What is the force…

A:

Q: he Hall voltage is maximum when the magnetic field is perpendicular to plate carrying the electric…

A: We need to tell whether the given statement is true or false.

Q: Shunt generator running at 1000 rpm, if flux is reduced by half, then what is the new speed

A: speed of the shunt generator is inversely proportional to the flux.

Q: Q. 1 Determine the moment of Inertia about given x and y axis in the following figure if a= 10 mm.…

A: Given section figure, where, a=10 mm

Q: 1. Discuss the excitation of a generator

A: Even if there is no current flowing through field windings then also there is a small amount of…

Q: 3- A magnetic core with an air gap is shown in below Figure. The depth of the core is 3 cm, the…

A: Given lg =4 cmN=100μr =2000μo =4π×10-7

Q: i= 12j mA-m² and 60 turns lies in magnetic field given by B=(-5j+7k) T .What is the magnitude of the…

A:

Q: The velocity of AC through a conductor is _____ the speed of light.   Select one: A. EQUAL TO B.…

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Q: The magnetic field inside a solenoid is: Select one: a. None of the above b. inversely proportional…

A: The magnetic field inside a solenoid is given by formula B= uoNI N= number of turns.   SO magnetic…

Q: In wind turbine, rotor is locked below 16Km/h wind speed. Select one: True False

A: Wind turbine: A wind turbine is a rotational device that converts the wind's kinetic energy into…

Q: A three-phase supply is generated, when three coils are placed apart and the whole rotated in a…

A: Space angle between the windings for n phase supply is 360n where n is the no. of phases

Q: Force on .. s against field direction. +q b- No one of them

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Q: non-uniform electric field E =x²y a _+ +xyz a_+xz²a_V/m-

A: Electric field lines are zero inside the perfect conductor. And permittivity of medium…

Q: m. Find the magnetic field amplitude. (speed of light is 3.0x10^8

A:

Q: The magnetic field inside a solenoid is: Select one: O a. All the above O b. Proportional to the…

A: The magnetic field inside a solenoid is given by the formula, Where N is number of turns and I is…

Q: Electric fields and magnetic fields are.... O parallel O perpendicular not related

A: electric and magnetic fields are: a) parallel b) perpendicular c) not related d) linear

Q: 3-A magnetic core with an air gap is shown in below Figure. The depth of the core is 3 cm, the…

A: To find the current that is required to produce Total flux of 0.00052 WB.

Q: The segment of wire in the figure carries a current of I-8.00 A, where the radius of the circular…

A: Given wire segment, Current, I = 8 A Radius of circular arc, R = 4 cm = 0.04 m

Q: Determine the magnitude of the resultant force and its direction measured counterclockwise from the…

A:

Q: *12-4. Starting from rest, a particle moving in a straight line has an acceleration of = seconds.…

A: Accelaration(a)=ddt velocity(v) and Velocity(v) =d Position (s)dt Given accelation (a) =2t-6

Q: shunt generator running at 1000 rpm, if flux is reduced by half, then what is the new speed

A: Given data N1 = 1000 rpm Flux 2 = 0.5 flux 1

Q: The frequency of voltage generated in SG depends on: Select one: a. Number of poles b. number of…

A: The synchronous speed of SG is So the frequency of voltage generated in SG depends on number of…

Q: At what rate the flux must be varied to measure 12 V across the terminal of 300 turns coil?

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Q: I A current I undergoes a 180° turn as shown. What is he magnitude and direction of the magnetic…

A: Magnetic field due to all wire at point P.  Which is shown in the figure.

Q: If a 17 m/s wind is blowing on a wind turbine and the tips of its blades are rotating at 62 m/s,…

A: Given 17 m/s wind is blowing on a wind turbine and the tips of its blades are rotating at 62 m/s

Q: A rectangular loop (2cm X 4 cm) is placed in the X-Y plane and is submerged by a magnetic field that…

A: For the above given magnetic flux density and rectangular loop we need to calculate the value of…

Q: If the armature of an 8-pole machine were wound with a simplex wave winding, find the number of…

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Q: coll consist of 750 turns. A current of 10A in the coil gives a rise to a magnetic flux of 1200 Wb.…

A: Given, Number of turns (N)=750  Current (I)= 10 A  Magnetic flux = 1200 wb

Q: 5. Plot of B vs.n. Magnetic Field vs. Number of Turns per Length 20 40 60 80 120 -0.005 y =…

A: The given graph is plotted between the magnetic field and the turns per length. the dotted lines…

Q: Quèstion 7 The number of parallel paths in 10 poles Dc Machine, Wave Winding equals to 10

A: This is a basic problem of electric machine. The solution is given below

Q: Questions: Separately excited generator 1. Discuss the excitation of a generator.

A: Even if there is no current flowing through field windings then also there is a small amount of…

Q: self excited DC generator field wit nergized by its own DC supply elect one: OTrue OFalse

A: DC generators can be classified into self excited and separately excited.

Q: I = 6A L = 3A x [m] 3 The magnitude of magnetic field density (B2) is :* 0.6μ Τ O Option 1

A:

Q: If a 16 m/s wind is blowing on a wind turbine and the tips of its blades are rotating at 60 m/s.…

A: tip speed ratio =  speed of blade/ wind speed  speed of blade = 60m/s wind speed = 16 m/s

Q: 3- A magnetic core with an air gap is shown in below Figure. The depth of the core is 3 cm, the…

A: Reluctance Reluctance is a property of magnetic material which opposes the flux in the magnetic…

Q: Critical resistance of a self-excited generator is closely related to the speed of the machine O…

A: The detailed answer is solved below according to the given parameters and instructions in the…

Q: In the basic, single loop, A.C. generator shown: S. a) the induced voltage is at minimum. O b) the…

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Q: BOOKWORK An electron beam passes through a region between two plates with a poten- tial difference…

A: Given values are - E=104VmB=10-4T Given that electric field and magnetic field are in right angles…

Q: A coil is placed along y-axis and moving with a velocity of 2i+6j-7k m/s. It is 1200mm long and…

A: The solution is given below

Q: Q 15.7: A solenoid has 250 turns and its self inductance is 2.4 mH. What is the flux through each…

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Q: The DC voltage is generated in the Field winding of DC Generator. Select one: True False

A:

Q: 3- A magnetic core with an air gap is shown in below Figure. The depth of the core is 3 cm, the…

A:

Q: An 10 turns coil has square loops with 0.1 ma long a side.and it placed in a magnetic field that…

A:

Q: Q.1 Give a short answer for only Six of the following 1. Explain the construction of turbine meter…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: Shunt generator running at 1500 rpm, if flux is reduced by half, then what is the new speed

A: The expression for back emf generated in case of the generator is given by Eb=NPϕZ60A Here, Eb is…

Q: 4. Given the circular coil shown below, calculate the magnitude of: a. Magnetic moment b. Torque on…

A: Magnetic moment: It is a vector quantity. It is used to measure the tendency to alinement of an…

Q: نقطة واحدة Shunt generator running at 1500 rpm, if flux is reduced by half, then what is the new *…

A: For dc shunt motor back EMF is given by, E=NPϕZ60A From the relation it is clear that flux is…

Q: 17 - A solenoid of length 0.75 m produces a magnetic field of 7 T along its axis when its coils…

A: Given data  Solenoid length L = 0.75m Magnetic field B = 7T  Current I = 60 A N=?

Magnetic Moment

The magnetic moment is defined as the alignment of a magnet and its strength when the magnet is creating a magnetic field. There are number of examples of the magnetic moment, few are a current carrying conductor in the form of coil, elements at microscopic levels like electrons and many more.