[amp_mcq option1=”High starting torque” option2=”Low starting torque” option3=”motors can find applications requiring A. High starting torque B. Low starting torque C. Variable speed” option4=”Frequent on-off cycles” correct=”option1″]<\/p>\n
The correct answer is: A. High starting torque.<\/p>\n
Differentially compound D.C. motors have a series field winding and a shunt field winding. The series field winding is connected in series with the armature, while the shunt field winding is connected in parallel with the armature. The series field winding has a higher resistance than the shunt field winding, so it produces a stronger magnetic field when current flows through it. This stronger magnetic field produces a higher starting torque.<\/p>\n
Low starting torque is required for applications where the motor is started from a standstill and needs to accelerate quickly. Variable speed is required for applications where the motor needs to operate at different speeds. Frequent on-off cycles are required for applications where the motor is turned on and off frequently.<\/p>\n
Here are some additional details about each option:<\/p>\n
[amp_mcq option1=”High starting torque” option2=”Low starting torque” option3=”motors can find applications requiring A. High starting torque B. Low starting torque C. Variable speed” option4=”Frequent on-off cycles” correct=”option1″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[743],"tags":[],"class_list":["post-49131","post","type-post","status-publish","format-standard","hentry","category-d-c-motors","no-featured-image-padding"],"yoast_head":"\n