India's Largest Education Online Store: StudyNeeds.com  |   (011) 4501-7650  |  Log In Here  |  Register Free
Top Coaching  
Home ›FAQ

Doubt & Answer Explanation

Doubt

FIND THE NET FORCE ON THE CHARGE Q1 DUE TO THE OTHER THREE CHARGES AS SHOWN IN THE FIGURE. TAKE Q1= -5 μC;
Q2= -8μC
Q3=15μC
Q4= -16μC......

Hello sir,
  it's easy to find the net force ..... But how to find the components of the net force!!! how to determine the angle to find the components!!!!

Answer Explanation


Net force along x direction is:


Fx = -K(5)(8)/r2 (10-12)N + K(5)(16)/( r?2)2(10-12)(cos45o)N


Net force along y direction is:

Fy = -K(5)(15)/r2 (10-12)N + K(5)(16)/( r?2)2(10-12)(sin45o)N

The angle made by this force with the horizontal direction is ? such that tan? = Fy/Fx


The magnitude of the resultant force is (Fx2 + Fy2)1/2.


Complete IIT JEE, AIEEE & BITSAT 2012 Online Course + Postal Correspondence Course + 36 DVD Set + Online Faculty Support

  • Complete Physics course combo (courseware + practice tests)
  • Complete Chemistry course (courseware + practice tests)
  • Complete Mathematics course combo (courseware + practice tests)
  • Full length Tests for IIT JEE, AIEEE, BITSAT, CEE and state level exams
  • Ask unlimited number of doubts to topIITcoaching faculty
  • Includes Postal Correspondence Course which comprises of entire courseware in over 30 books
  • Includes a CD which contains test series for IIT JEE, AIEEE & BITSAT with detailed answer explanation
  • Personalized recommendations based on your performance
  • Receive SMS alerts for all important Engineering exam events
  • Compare your performance against the nation
Rs 10500/- less 30% discount = Final Price Rs 5250/-
Buy Now
For questions call: 011-456-293-45, 011-456-293-46, 011-456-293-35

Home | Company Overview | topIITcoaching.com Faculty | Distinguished Faculty | Management Team | Contact us | Our Facebook Page
Largest Education Online Store - StudyNeeds.com  |  IIT & AIEEE  |  AIPMT, AIIMS & AFMC  |  CA-CPT  |  BBA, BBS & BBE  |  CLAT  |  CAT  |  Bank PO  |  GRE  |  GMAT  |  Career Guidance

© 2011 Prism Education Private Limited. All rights Reserved.