Briefly explain the construction and operation of a DC Shunt motor. (b) A dc shunt machine ( 10 kW, 250 V, 1200 rpm) had armature resistance of 0.25 Ω. The machine is connected to 250 V dc supply, draws rated armature current ad rotates at 1200 rpm i. Determine the generated voltage, the electromagnetic power developed and the torque developed. ii. The mechanical load on the motor shaft is disconnected, and the motor draws 4 A armature current, determine the speed and rotational loss

Q: An American traveler in Kenya carries a transformer to convert Kenya's standard 240 V to 120 V so…

A:

Q: When a current of 4A between two coils changes to 12A in 0.5s in primary and induces an emf of 50mV…

A: We will answer the question by using formula for emf induced in secondary coil as a result of change…

Q: A 0.120 m radius, 486 turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having…

A:

Q: In the discussion of electromagnetic induction, we learned that if a magnet is brought rapidly…

A: The phenomenon of inducing an electric current in a coil by moving a magnet is known as…

Q: = magnetic Field (

A:

Q: What is the magnetic force if it has a magnetic field B = 30 T, If a current carrying conductor has…

A: Given information: The strength of the magnetic field (B) = 30 T The length of the conductor (L) =…

Q: Consider the form of Faraday’s Law of Induction, and select the responses about from below that…

A: Let ϕ denotes the magnetic flux, t denotes the time, and e denotes emf voltage generated. Therefore,…

Q: When the current in one coil changes at a rate of 5.6 A/s an emf of 6.3 × 10-3 is induced in a…

A: From question-Change in current, dIdt= 5.6 A/sand, ε=6.3×10-3 V

Q: A flux 25x105 Maxwell links with a 1500 turn coil when a current of 3 A passes through the co a)…

A:

Q: (i) State and explain what happens to the galvanometer when the magnet is moving towards the coil as…

A: When a magnet is moving towards the coil then the galvanometer connected to the coil shows…

Q: How does the flux, time, and greater turns of a coil affect the induced emf?

A: Introduction :- Here we need to tell how the different factors affects the induced emf. This…

Q: 1) A 200-turns square loop of 34 cm on a side, carrying a current of 22 A creates a torque of 295 N…

A:

Q: 3. Suppose a moving conductor which is 0.1 meter long moving at a rate of 1.5 m/s and motional emf…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Don't use chatgpt will upvote

A: Step 1: As per the question: a) The current induced in the bar will be from a to b.  Explanation:The…

Q: Find the magnitude and direction of the induces emf.

A:

Q: Ahe magnetic flux. thunugh a loop of uerislänce os ohm is laying accouding to° the uelotion p=…

A: Whenever the flux of magnetic field through the area bounded by a closed conducting loop changes,…

Q: Question: A wire loop moves at a constant velocity 2.0 m/s through a constant magnetic field of 0.1…

A:

Q: An electron accelerated from rest through a potential difference of 2000 wells enteres a uniform…

A: Given: The potential difference is 2000 V. The magnetic field is 0.02 Wb/m2. The electrons enter…

Q: Integrated ConceptsCalculate the maximum torque on a 50-turn, 1.50 cm radius circular current loop…

A: As per the given data, Number of turns (N) = 50; Radius of the circular coil (r) = 1.5 cm =1.5×10-2…

Q: Calculate the magnetic induction, B, of a wire that carries a current of 100 amps, at a distance of…

A:

Q: 1) A circular loop of radius 4.1 cm is positioned in a uniform magnetic field of magnitude 6500 G so…

A:

Q: 2. A square coil of resistance 4 0, 50 turns and side length 5 cm is placed with its plane making an…

A:

Q: You have a windmill that rotates its 500-turn, 0.250 m diameter coil at 4500 rpm in a 1.5 T field.…

A:

Q: 0.290 m radius, 509 turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having…

A:

Q: A DC shunt motor is designed with compensating windings. If there is a compensating winding then the…

A: The output characteristic of a separately excited DC motors which is the relation between the…

Q: In the figure below, two straight conducting rails formaright angle. A conducting bar in contact…

A:

Q: A bar magnet is positioned near a coil of wire, as shown in the figure below. R What is the…

A:

Q: The magnetic field due to current in wires in your homecan affect a compass. Discuss the effect in…

A: Answer:   The standard value of current for household circuits are 20 Ampere. When the current…

Q: How much current does a long wire carry if it produces a magnetic field of magnitude 4.6 microteslas…

A: Strength of magnetic field (B) = 4.6 × 10-6 T  Field distance (r) = 0.21 m

Q: A U.0 kq Obielt [न Is Placed on Sale in Elevator, The Scule Shais 40 No What rs accelention Of…

A: Given that:- Mass of object=4kg

Q: A current 10 A in the primary of a transformer is reduced to zero at the uniform rate in 0.1 second.…

A:

Q: A linear machine operates in a 0.4 T magnetic field. Find the speed of the moving part and the…

A: Given: The magnetic field that the machine operates is B = 0.4 T The length of the moving part is l…

Q: 5. For the square wire arrangement in Fig 3. a =12.0 cm and b =16.0 cm. The currents in the long…

A: Then magnetic flux passe through the element is Therefore flux through whole square loop will be…

Q: how does the direction of the induced magnetic moment in a conducting loop depend on the direction…

A: SOlution: To find how does the direction of the induced magnetic moment in a conducting loop depend…

Q: Calculate the peak voltage of a generator that rotates its 100-turn, 0.100 m diameter coil at 3600…

A: Given data: Number of turns (N) = 100 Diameter (d) = 0.1 m Angular frequency = 3600 rpm Magnetic…

Q: A 460-turns square wire coil rotates about a vertical axis at 2690 rev per min as in FIGURE 5. The…

A: