In a synchro transmitter, which coil acts as primary?

Assertion (A): The function has a double pole at s = - 5.

Reason (R): If the function [G(s)] (s + p)ⁿ for n = 1, 2, 3 ... has a finite non-zero value at s = - p, then s = - p is called a pole of order n.

For a second order system the damping factor is varied from 0 to 1. The locus of poles is

Consider the following statements relating to synchros

1. Rotor of control transformer is either disc shaped or umbrella shaped
2. Rotor of transmitter has low magnetic reluctance
3. Transmitter and control transformer pair act as error detector

Out of above the correct statements are

The log magnitude plot of the given figure is for