Use Coupon: CART20 and get 20% off on all online Study Material

Total Price: Rs.

There are no items in this cart.
Continue Shopping
Grade: 12
        how we use phasar to solve question
9 years ago

Answers : (1)

879 Points

Dear student,

A phasor diagram helps us to display the phase difference in a circuit that contains passive components.

From the origin (arbitrarily defined) we draw radial lines the length of which represents the magnitude of the variable. The angles between these lines represents the phase difference, i.e. if two lines have zero degrees between them then they are in phase, if they have 90 degrees between them they are out of phase by 90 degrees.

There is usually a reference phase angle that is represented by the conventional x-axis. Advancing phase is then conventionally shown in an anti-clockwise direction.

In text books a phasor quantity is usually represented as bold type i.e. V but when one writes a phasor quantity underlined i.e. V. A phasor that is at angle A to the reference angle is usually denoted as V<A where A may be +ve or -ve (leading or lagging respectively) to the reference.

The diagram below shows two phasors A and B. These are then combined to give a new phasor C.

In this case the magnitude of C will be given by (by Pythagoras' theorem):

and the phase difference between the reference angle (in this case phasor A) and C is given by:


Please feel free to ask your queries here. We are all IITians and here to help you in your IIT JEE preparation.

All the best.

Win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian.

Now you score 5+15 POINTS by uploading your Pic and Downloading the Askiitians Toolbar  respectively : Click here to download the toolbar..


Askiitians Expert

Sagar Singh

B.Tech, IIT Delhi

9 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

Course Features

  • 731 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution

Course Features

  • 731 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions

Ask Experts

Have any Question? Ask Experts

Post Question

Answer ‘n’ Earn
Attractive Gift
To Win!!! Click Here for details