Electro Magnetic Induction And Alternating Currents Question 25

The power factor of a good choke coil is nearly zero [MP PMT 1994]

Options:

A) Nearly zero

B) Exactly zero

C) Nearly one billion

D) Exactly one

Show Answer

Answer:

Correct Answer: A

Solution:

$ \cos \varphi =\frac{R}{Z} $ . In choke coil $ \varphi \approx 90{}^\circ $ so $ \cos \varphi \approx 0 $



sathee Ask SATHEE

Welcome to SATHEE !
Select from 'Menu' to explore our services, or ask SATHEE to get started. Let's embark on this journey of growth together! 🌐📚🚀🎓

I'm relatively new and can sometimes make mistakes.
If you notice any error, such as an incorrect solution, please use the thumbs down icon to aid my learning.
To begin your journey now, click on

Please select your preferred language
कृपया अपनी पसंदीदा भाषा चुनें