A ferromagnetic core is shown in Figure Q5. The depth of the core is 5 em. The other dimensions of the core are as shown in the figure. Assume that the relative permeability of the core is 1000. Find the value of the current that will produce a flux of 0.003 Wb. With this current, determine (i) (ii) (a) (b) The flux density at the top of the core. The flux density at the right side of the core.

Q: Q6 a d.c. shunt machine while running as generator develops a voltage 250 V at 100 r.p.m. at…

A: In this question,   We need to determine the speed and efficiency of the generator

Q: A d.c. shunt machine generates 250-V on open circuit at 1000 r.p.m. Effective armature resistance is…

A:

Q: 2.A. When machine losses are determined by the retardation method, it is necessary to know the…

A: 1) Retardation test is also known as running down test. This is efficient method to find out stray…

Q: 5. A 400 volts shunt generator has a full-load current of 200 A. Its armature resistance is 0.06…

A:

Q: Q. 3. Name the numbered components of the shown DC machine. 1. 2. 3. 4. 3 5. 6. 7.

A: In this question we need to write the components of DC machine shown in the figure.

Gear Motor

A gear motor is a combination of a gearbox and an electric motor. This combination of two systems is used for efficient usage of the motor. It makes a cost-effective solution for high torque, low-speed applications. These motors are used in our household as, garage door openers, alarm clocks. In commercial areas, hospital beds, cranes.