Answer:
(a) 50.20 ohm (b) [tex]0.0199ohm^{-1}[/tex]
Explanation:
e have given the power P =1 hp =745.7 W
Voltage V =240 V
Power factor [tex]cos\Phi =0.65[/tex]
We know that power [tex]P=Vicos\Phi[/tex]
So [tex]745.7=240\times i\times 0.65[/tex]
i =4.7801 A
Now according to ohm's law [tex]i=\frac{V}{Z}[/tex]
(a) So [tex]Z=\frac{V}{i}=\frac{240}{4.78}=50.20ohm[/tex]
(b) Admittance of any circuit is the inverse of the impedance
So admittance [tex]Y=\frac{1}{Z}=\frac{1}{50.20}=0.0199ohm^{-1}[/tex]
