The shape of torque-speed curve of a two phase servo- motor mostly depends on

ratio of rotor reactance to rotor resistance

magnitude of stator voltages

ratio of stator reactance to rotor resistance

ratio of rotor reactance to rotor resistance and also the ratio of stator reactance to stator resistance

Correct Answer : Option (A) : ratio of rotor reactance to rotor resistance

Recently Updated in Automatic Control Systems Questions

For a quadratic factor in denominator of transfer function the phase angle at corner frequency (in Bode phase angle plot)

is +90°

is -90°

depends on the damping factor

None of the above

Correct Answer : is -90°

The response to sinusoidal excitation can be found by

setting s = jω in the network function

setting s = -jω in the network function

taking inverse transform of network function

None of the above

Correct Answer : setting s = jω in the network function

The resolution of a wire wound potentiometer is about

0.1%

0.001%

Correct Answer : 0.1%