How is impedance in polar form converted to an equivalent admittance?
Take the reciprocal of the angle and change the sign of the magnitude
Take the reciprocal of the magnitude and change the sign of the angle✓Bonne réponse
Take the square root of the magnitude and add 180 degrees to the angle
Square the magnitude and subtract 90 degrees from the angle
Explication
Admittance is the reciprocal of impedance, and dividing one by a polar quantity inverts the magnitude while negating the angle. So an impedance of magnitude M at angle θ becomes an admittance of magnitude 1/M at angle −θ.