Electrical Transformers and Rotating Machines
4th Edition
ISBN: 9781305494817
Author: Stephen L. Herman
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 15, Problem 1RQ
To determine
The principle of operation of direct current motor.
Expert Solution & Answer
Explanation of Solution
DC motor is a device that is used to convert direct current electrical energy into
The DC motor operates on the principle of attraction and repulsion which states that when a current carrying conductor is placed in a magnetic field, the conductor experiences a magnetic force. This magnetic force is directly proportional to the amount of current flowing through the conductor.
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
state all the formulae associated with adiabatic process
Design a Moore type synchronous state machine with three external inputs A1, A2, A3 and
one output signal F. The output F goes to 1 when A1.A2.-A3 = 1 at the next system timing
event. The output F stays at 1 as long as A3=0; otherwise, the output goes to 0. (Note: use
a positive edge-triggered D flip-flop in the design)
Write a VHDL code to describe the implementation of one-digit decimal counter using
PROCESS.
State all the formulae associated with the Isothermal Process.
Chapter 15 Solutions
Electrical Transformers and Rotating Machines
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- : +0 العنوان solle не Am 4 A pump draws water through a 300-mm diameter cast iron pipe, 15m long from a reservoir in which the water surface is 4.5 m higher than the pump and discharges through a 250- mm diameter cast iron, 75 m long, to an elevated tank in which the water surface is 60 m higher than the pump. Q=0.25 m³/s. Considering f-0.02 and the coefficients for minor head losses (k entrance 0.5, k bend 0.35, and K exit -0.5), compute the power of the pump. ۳/۱ ۲/۱ 4.5 m Kentrance 300 mm dia. 15 m Length 250 mm dia. 75 m Length kpend kexit 60 m ostlararrow_forwardA 100 m length of a smooth horizontal pipe is attached to a large reservoir. A attached to the end of the pipe to pump water into the reservoir at a volume flow rate of 0.01 m³/s. What pressure (gage) must the pump produce at the pipe to generate this flow rate? The inside diameter of the smooth pipe is 150mm. Dynamic Viscosity of water is 1*103 Kg/(m.s). K at the exit of the pipe is 1. pump 10 m D=150mm L= 100 m- Pumparrow_forward: +0 العنوان solle не A 4 A numn drawe water through 200 ۳/۱ ۲/۱ A heavy car plunges into a lake during an accident and lands at the bottom of the lake on its wheels as shown in figure. The door is 1.2 m high and 1 m wide, and the top edge of the door is 8 m below the free surface of the water. Determine the hydrostatic force on the door if it is located at the center of the door, and discuss if the driver can open the door, if not; suggest a way for him to open it. Assume a strong person can lift 100 kg, the passenger cabin is well-sealed so that no water leaks inside. The door can be approximated as a vertical rectangular plate. 8 m E ✓ Lakearrow_forward
- Two concentric plain helical springs of the same length are wound out of the samewire circular in cross section and supports a compressive load P. The inner springmean diameter 200 mm. Calculate the maximum stress induced in the spring if theconsists of 20 turns of mean dimeter 160 mm and the outer spring has 18 turns ofdiameter of wire is equal to 10 mm and Pis equal to 1000 N. (Take Ks=1)arrow_forwardt 1+2\xi pu +962гz P 1 A heavy car plunges into a lake during an accident and lands at the bottom of the lake on its wheels as shown in figure. The door is 1.2 m high and I m wide, and the top edge of the door is 8 m below the free surface of the water. Determine the hydrostatic force on the door if it is located at the center of the door, and discuss if the driver can open the door, if not; suggest a way for him to open it. Assume a strong person can lift 100 kg, the passenger cabin is well-sealed so that no water leaks inside. The door can be approximated as a vertical rectangular plate. 加 8 m 1.2 m Lake -20125 DI 750 x2.01 5 P 165 Xarrow_forward11. If Sin(x+α) = 2Cos(x-a); prove that: tan x= 2- tana 1-2 tanaarrow_forward
- 12. If Sin(x-a)= Cos(x+α); prove that: tan x=1.arrow_forward: +0 العنوان solle не A 4 A numn drawe water through 200 ۳/۱ ۲/۱ A heavy car plunges into a lake during an accident and lands at the bottom of the lake on its wheels as shown in figure. The door is 1.2 m high and 1 m wide, and the top edge of the door is 8 m below the free surface of the water. Determine the hydrostatic force on the door if it is located at the center of the door, and discuss if the driver can open the door, if not; suggest a way for him to open it. Assume a strong person can lift 100 kg, the passenger cabin is well-sealed so that no water leaks inside. The door can be approximated as a vertical rectangular plate. 8 m E ✓ Lakearrow_forward۲/۱ - | العنوان A heavy car plunges into a lake during an accident and lands at the bottom of the lake on its wheels as shown in figure. The door 1.2 m high and 1 m wide, and the top edge of the door is 8 m below the free surface of the water. Determine the hydrostatic force on the door if it is located at the center of the door, and discuss if the driver can open the door, if not; suggest a way for him to open it. Assume a strong person can lift 100 kg, the passenger cabin is well-sealed so that no water leaks inside. The door can be approximated as a vertical rectangular plate. 8 m Lakearrow_forward
- - | A pump draws water through a 300-mm diameter cast iron pipe, 15m long from a reservoir in which the water surface is 4.5 m higher than the pump and discharges through a 250- mm diameter cast iron, 75 m long, to an elevated tank in which the water surface is 60 m higher than the pump. Q-0.25 m³/s. Considering f- 0.02 and the coefficients for minor head losses (k entrance 0.5, k bend 0.35, and K exit -0.5), compute the power of the pump. Kexit 250 mm dia 75 m Length 60 m العنوان 300 mm dia. 15 m Length -UZ kentrance 11421 Kpend osthor oster ۲/۱arrow_forwardA heavy car plunges into a lake during an accident and lands at the bottom of the lake on its wheels as shown in figure. The door is 1.2 m high and 1 m wide, and the top edge of the door is 8 m below the free surface of the water. Determine the hydrostatic force on the door if it is located at the center of the door, and discuss if the driver can open the door, if not; suggest a way for him to open it. Assume a strong person can lift 100 kg, the passenger cabin is well-sealed so that no water leaks inside. The door can be approximated as a vertical rectangular plate. 8 m m Lakearrow_forward۲/۱ A pump draws water through a 300-mm diameter cast iron pipe, 15m long from a reservoir in which the water surface is 4.5 m higher than the pump and discharges through a 250- mm diameter cast iron, 75 m long, to an elevated tank in which the water surface is 60 m higher than the pump. Q = 0.25 m³/s. Considering f= 0.02 and the coefficients for minor head losses (k entrance = 0.5, k hend 0.35, and K exit -0.5), compute the power of the pump. 4.5 m 300 mm dia. 15 m Length 250 mm dia. 75 m Length kentrance kexit 60 m kbend ostherarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Electrical Transformers and Rotating MachinesMechanical EngineeringISBN:9781305494817Author:Stephen L. HermanPublisher:Cengage Learning
Understanding Motor ControlsMechanical EngineeringISBN:9781337798686Author:Stephen L. HermanPublisher:Delmar Cengage Learning
Refrigeration and Air Conditioning Technology (Mi...Mechanical EngineeringISBN:9781305578296Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill JohnsonPublisher:Cengage Learning
Electrical Transformers and Rotating Machines
Mechanical Engineering
ISBN:9781305494817
Author:Stephen L. Herman
Publisher:Cengage Learning
Understanding Motor Controls
Mechanical Engineering
ISBN:9781337798686
Author:Stephen L. Herman
Publisher:Delmar Cengage Learning
Refrigeration and Air Conditioning Technology (Mi...
Mechanical Engineering
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:Cengage Learning