Question
a.
Increases, decreases
b.
Decreases, decreases
c.
Decreases, increases
d.
Increases, increases
Posted under DC Machines
Interact with the Community - Share Your Thoughts
Uncertain About the Answer? Seek Clarification Here.
Understand the Explanation? Include it Here.
Q. Due to the effect of armature reaction in DC machine, the flux per pole and generated voltage ______ and ________ respectively.
Similar Questions
Explore Relevant Multiple Choice Questions (MCQs)
Q. Armature reaction of an unsaturated DC machine is (in terms of magnetization) ________
View solution
Q. What is the effect of demagnetizing component of armature reaction?
View solution
Q. What is the reason behind short circuit in armature?
View solution
Q. What will happen at poles due to armature reaction in DC generator?
View solution
Q. In DC generator, how armature reaction is produced?
View solution
Q. In a DC generator, the effect of armature reaction on the main pole flux is to _________
View solution
Q. In a DC machine brushes are normally located along GNA.
View solution
Q. Armature reaction at 90° to the main field is called as ____________
View solution
Q. Increase in flux density at one end of the pole is less than the decrease at the other end. This is called as ____________
View solution
Q. Peak flux density in terms of total flux density is given by _________
View solution
Q. Flux density in the interpolar region drops down because of ______
View solution
Q. Which axis undergo shifting as a result of armature reaction?
View solution
Q. Armature reaction in a machine is demagnetizing due to _________
View solution
Q. Which of the following are effects of armature reaction?
View solution
Q. A 250 kW, 400 V, 6-pole dc generator has 720 lap wound conductors. Armature current is ____
View solution
Q. What is the total ampere conductors/pole (in SI) if 600 lap wound conductors carry 120 A current through conductors (P=4)?
View solution
Q. What is the total ampere turns/pole (in AT/pole) if 600 lap wound conductors carry 120 A current through conductors (P=4)?
View solution
Q. If total ampere turns per pole is equal to 6000 A-turns, peak ampere turns for a 4-pole machine is _____
View solution
Q. What is the total ampere turns per pole for 720 lap wounded conductors with carrying armature current equal to 625 A in a 6-pole machine?
View solution
Q. For 6252 AT/Poles, if brush shift is of 2.50 mech. Degrees, what will be the demagnetizing ampere-turns per pole for a 6-pole DC machine?
View solution
Recommended Subjects
Are you eager to expand your knowledge beyond DC Machines? We've handpicked a range of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!
