Consider a permanent magnet dc (PMDC) motor which is initially at rest. At t = 0, a dc voltage of 5 V is applied to the motor. Its speed monotonically increases from 0 rad/s to 6.32 rad/s in 0.5 s and finally settles to 10 rad/s. Assuming that the armature inductance of the motor is negligible, the transfer function for the motor is

Consider a permanent magnet dc (PMDC) motor which is initially at rest

1.	Consider a permanent magnet dc (PMDC) motor which is initially at rest. At t = 0, a dc voltage of 5 V is applied to the motor. Its speed monotonically increases from 0 rad/s to 6.32 rad/s in 0.5 s and finally settles to 10 rad/s. Assuming that the armature inductance of the motor is negligible, the transfer function for the motor is
A.	\(\frac{{10}}{{0.5s + 1}}\)
B.	\(\frac{2}{{0.5s + 1}}\)
C.	\(\frac{2}{{s + 0.5}}\)
D.	\(\frac{{10}}{{s + 0.5}}\)
Answer» C. \(\frac{2}{{s + 0.5}}\)

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