Question: While carrying out retardation test, if t is equal to time constant then _____________
Options
A : Speed increases to 36.8% of its initial value
B : Speed reduces to 36.8% of its initial value
C : Speed reduces to 26.8% of its initial value
D : Speed reduces to 46.8% of its initial value
Dc Machines Swinburnes Test more questions
PMDC device is commonly employed for:
In series-parallel speed control method ______________
Minimum packet size increases as
What occurs first if data is stored in the buffer?
Electrical braking of any variety becomes less effective as ________________
The rotor of 3-phase slip ring induction motor is fed....
How total number of brushes in a commutator are determined....
The product of the phase and the group velocities is....
What does the threshold number for Tau depend on?
What does the weight of the rails depends upon?
Dc Machines Applications Dc Machines more Online Exam Quiz
Dc Machines Speed Control Using Field Control Shunt Motor
Dc Machines Starting Dc Motors 1
Dc Machines Ward Leonard Speed Control Method