Question

Two impedances Zī and Z2 having the same numerical value are connected in parallel. If Zhas
a pf of 0.866 pf lagging and Zz has a pf of 0.866 leading. Calculate the pf of the combination.​

Answer 1

Answer:

Text Solution

Answer :

A::B::D

Solution :

(a)

<br> Further,

<br> or

<br>

<br> and

<br> Further

<br>

<br> In second case

<br> and

<br>

<br> and

<br> Further,

<br>

<br> When connected in series, <br>

<br>

<br>

<br>

<br> Power factor,

(leading) <br>

<br>

<br>

<br> (b) Since

<br> Therefore, if

inductive reactance is to be added in series, then it will become only

circuit and power factor will come unity