Q4\ B\ calculate the resistance value required to connected with a moving coil voltmeter to produce one volt per division if the coil have 50 turns, with 4 cm long diameter and 3cm wide. The flux density of the magnetic field in the air-gap is 0.1 Wb/m.The control spring exerts a torque of 2.4x10 N-m when the deflection is 100 divisions on the full scale. Neglect the resistance of the voltmeter coil.

Q: HW3. A DC motor is driven by a voltage source Vs through a resistor of R = 5 Q. The rotor of the…

A: Given: A DC motor is driven by a voltage source Vs through the resistance R=5 Ω The rotor has N=10…

Q: The relative permeability of a simple magnetic circuit is 200. If the applied MMF of 200AT results…

A:

Q: QUESTION 6 A rectangular loop of length a-4.00 cm and width b-2.00 cm is put in a region of uniform…

A: Given data : Length of rectangular loop a=4 cm=4×10-2 m Width of rectangular loop b=2 cm =2×10-2 m…

Q: A 4pole lap wound armature when driven at 600rpm generates 120V. if the flux per pole I 25mWb, find…

A: A d.c. generator is an electrical machine in which mechanical energy gets converted into electrical…

Q: A mmf is supplied by a current of 1 A through 100 turns. The magnetic unit consists of a steel core…

A: Reluctance =length premeability×area And rotal reluctance is the sum of reluctance of air gap and…

Q: A flat circular coil with 10 loops of wire has a diameter of 2.0 cm and carries a current of 0.50 A.…

A:

Q: Describe, with the aid of sketches, the effect on a current-carrying conductor lying in and at right…

A:

Q: 5) You are facing a loop of wire which carries a clockwise current of 3.0A and which surrounds an…

A: Given data, Current i = 3 A Area A=600 cm2=0.06 m2 Magnetic field density B =2 T Number of turns is…

Q: The effective core length of a 6-pole dc machine armature is 40 cm and its diameter is 30 cm. This…

A:

Q: 4.) A single loop of wire with an area of 0.0900 m is in a uniform magnetic field that has an…

A: Faraday's Law of induction:-The magnitude of emf induced in the conducting loop is  rate of change…

Q: A magnetic circuit consists of silicon steel of 3000 permeability and an air gap. The length of the…

A: MMF = (MMF)core + (MMF)air           = B/HoHr(lg)core + B/Ho(lg)air           = Փ/HoA [(lg)core/Hr +…

Q: Problem 1 In the following magnetic circuit, N = 1000; µ. = 1230. As shown in the figure, for the…

A: In every magnet, there will be a north and south pole. For a permanent magnet that has north and…

Q: A rectangular loop of wire of sides W = 0.38 m and L = 0.74 m lying in ry plane carries a current of…

A: Given, a rectangular loop wire having Side, W = 0.38 m Length, L = 0.74 m Current, I = 45 A Magnetic…

Q: A magnetic circuit is made of mild steel arranged as shown below. The centre limb is wound with 500…

A: Given:Flux=1.3mWbTurns,N=500area of outer limb=500mm2area of cental limb=800mm2relative permeability…

Q: An iron ring of mean length 50 cms has an air gap of 1 mm and a winding of 200 turns. If the…

A:

Q: Air gap Figure 1 A 1000-turn coil is wound on the centre limb of a steel frame as shown on figure1…

A: consider the given values

Q: Core depth=10 cm (uniform) I 1 = 1 mm N 82= 2 mm 8 cm-> 6 cm Consider the magnetic circuit shown…

A: Reluctance of Flux path is  Directly proportional to length Inversely proportional to area of Flux…

Q: QI- The magnetic circuit shown is made of a cast-steel and has a coil of 1000 turns on its center…

A: It is given that: N=1000 turnsthickness of core=5cmmean length of magnetic paths…

Q: The moving coil of a D'Arsonval - type instrument has 80 1/2 turns of wire that are wound over a…

A: Dimension of axial frame: length a=1.5 inch, width b=78 inch. Magnetic flux density B=5000…

Q: A 20.0-cm-long metal rod can move freely on two horizontal, frictionless conducting rails connected…

A: Given, L=20 cmR=15 Ωv=0.80 m/sF=1.20 N

Q: a square wire loop, with a side length of 25cm and a resistance of 1.25Ω, moves across a homogeneous…

A: When the loop enters the magnetic field the flux inside the loop will change,this will cause the…

Q: 4. An infinite metal sheet has current flowing a) Sketch the magnetic field created by this through…

A: Solution (a) We know that B = μok2 (independant of distance )here k  = current per unit width as per…

Q: uare loop of wire is oriented in a 12-tesla magnetic field directed to the left as s

A: Its direction of torque on a current carrying conductor can be determined by Fleming left-hand…

Q: HW3. A DC motor is driven by a voltage source Vs through a resistor of R = 5 Q. The rotor of the…

A: Given: The DC motor is driven by a voltage source Vs, through a resistor of R=5ΩSo, first we have to…

Q: A long wire is bent into the hairpin-like shape shown in the figure. a) What is the direction of the…

A: According to quesion we have to find , a) What is the direction of the magnetic field at the…

Q: Q1. (a) What is the source of self-inductance and back emf in a current carrying loop? Remember, I…

A: Solution

Q: Q4//an 8-pole, lap-wound armature rotated at 350 r.p.m. is required to generate 260 V. the useful…

A: Given data:     Number of  poles P=8     Speed of armature N=350 r pm     Induced emf…

Q: se the best statement that explains why a constant magnetic field cannot do work on a mov O The…

A: The fact that magnetic force do no work is an elementary and direct consequence of the Lorentz force…

Q: A magnetic circuit consists of a cast steel yoke which has a cross-sectional area of 200 mm? and a…

A:

Q: Q4\ B\ calculate the resistance value required to connected with a moving coil voltmeter to produce…

A:

Q: A 60.0-cm length of wire carries a current of 10.0 A. It is bent into an equilateral triangle loop…

A: Given, l=60 cm=0.6 mB=0.75 TI=10 A Equation for torque is given by, τ=IABsinθ

Q: The figure below is a top down view of a circular wire coil with rotating clockwise in a uniform…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: A simple generator has a square armature 9.0 cm on a side. The armature has 80 turns of…

A: In the circuit, Find the value of frequency f. We know  Emf = 4.44fN Φm .  All parameters are given.

Q: (ii). A wire is placed in a magnetic field so that it makes an angle of 50° with the field as shown.…

A: Given: Current i = 4A Length of the wire = 0.05 m Magnetic field B = 0.20 T Angle θ=50°

Q: A 4-pole, simplex lap wound armature when driven at 600 rpm generates 120 V. If the flux per pole is…

A: In this question we need to find a number of armature conductor.

Q: A bar of iron is said to be saturated once most of its magnetic molecules are aligned, whereby,…

A: The explanation to all three subparts is as follows.

Q: A linear machine has a magnetic flux density of 0.5 T directed into the page, a resistance of 0.25…

A: The given arrangement of electromagnetic induction is shown in the figure below.

Q: Air gap I Figure 1 A 1000-turn coil is wound on the centre limb of a steel frame as shown on figure1…

A:

Q: Show Work Please (Q8)

A: Given that: An infinite long wire carrying a uniform current I. Prove that: B→=μoI2πrθ∧

Q: A rectangular loop of wire of sides W = 0.3 m and L = 0.64 m lying in xy plane carries a current of…

A: consider the given question; W=0.3 mL=0.64 mI=10.5AB→=2.4Ti^+1.7Tk^

Q: 1. A flux of 1,500,000 Maxwell links a coil having 350 turns. This flux through the coil is A of…

A: As per our guidelines, we are supposed to answer only one question. Kindly repost other questions as…

Q: Q1. Calculate the force of attraction on the armature of the cast steel electromagnet shown below…

A: Given : B=1.2T , Area = 20×10-4 m2gap = 1×103  m        = 0.8 mTo find face of the attraction on…

Q: In the figure below, resistance R = 8.00 0, the bar is moving at a constant speed of 1.85 m/s, the…

A:

Q: In the magnetic circuit detailed in below Figure with all dimensions in mm, calculate the required…

A: Solution 2- Given, Turns = 200Flux density = 0.8 Tμ0=4π*10-7 h/m

Q: Q4/an 8-pole, lap-wound armature rotated at 350 r.p.m. is required to generate 260 v. the useful…

A:

Q: Determine the air gap length of a dc machine from the following particulars: Gross length of core =…

A:

Q: In the simple, one loop, one turn, 2-pole, DC machine: R = 0.5 Ohms, Vg = 140 V, r = 0.6 m, B = 0.4…

A: Given Data: R = 0.5 ohm r = 0.6 m Vb = 140 V B = 0.4 T L = 1.2 m

Q: (c) The simple magnetic circuit shown in fig 6. has a cross-sectional area of 50cm? and mean length…

A:

Q: 5. Calculate the force exerted by each conductor, 9 in. long, on the armature of a DC motor, when it…

A: Given : ×107 Wb/m2Length of the conductor , L=9 in. Current in the armature ,I=100A Field density…

Coulomb’s Law

Coulomb's law states that the attraction or repulsion force between two charged things is proportional to the product of their charges and inversely proportional to the square of their distance. It has an effect along the line that connects the two-point charges.