Question

For a certain load, the true power is $150W$ and the reactive power is $125W$. The apparent power is

• A. $19.52W$
  
• B. $195.2W$
  
• C. $275W$
  
• D. $25W$
  

Answer 1

The correct option is B $195.2W$

True power $P=150W$

Reactive power $P_r=125W$

Thus apparent power $P_a=\sqrt{P^2+P_r^2}$

$\therefore$ $P_a=\sqrt{(150{)}^2+(125{)}^2}$

$⟹$ $P_a=195.2W$