The laminations of the armature of a D.C. machine are usually _____ thick.
A) 0.1 to 0.2 mm
B) 0.2 to 0.3 mm
C) 0.3 to 0.4 mm
D) 0.4 to 0.5 mm
Correct Answer:
Verified
Q5: The cylindrical windings using circular conductors are
Q6: The surge phenomenon is particularly important in
Q7: Which of the following in an application
Q8: D.C. servomotors are used in
A)purely D.C. control
Q9: The stator of a D.C. machine comprises
Q11: is usually used for brush rockers
A)Mild steel
B)Copper
C)Aluminium
D)Cast-iron
Q12: _ brushes are fragile and cause excessive
Q13: Which of the following brushes can be
Q14: _ is the common method of applying
Q15: Which of the following problem arises in
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