Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Questions  >  Five equal point charges of Q = 20 x 10-9C, a... Start Learning for Free
Five equal point charges of Q = 20 x 10-9C, are placed at x = 2,3,4,5 and 6 cm. The electric potential at origin will be
  • a)
    416V
  • b)
    128V
  • c)
    325 V
  • d)
    261V
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Five equal point charges of Q = 20 x 10-9C, are placed at x = 2,3,4,5 ...
Electric potential at origin is given as 
View all questions of this test
Most Upvoted Answer
Five equal point charges of Q = 20 x 10-9C, are placed at x = 2,3,4,5 ...
Calculation of Electric Potential Due to Point Charges

Given:
- Five point charges of Q = 20 x 10^-9 C each are placed at x = 2, 3, 4, 5 and 6 cm.
- We need to find the electric potential at the origin.

Approach:
- We will use the formula for electric potential due to point charges.
- Electric potential at a point is the sum of electric potentials due to all the charges present at that point.

Formula:
- Electric potential due to a point charge Q at a distance r is given by V = kQ/r, where k is the Coulomb's constant (9 x 10^9 Nm^2/C^2).

Calculation:
- Distance of charge 1 (at x = 2 cm) from the origin = 2 cm = 0.02 m
- Electric potential due to charge 1 at the origin = kQ/r = (9 x 10^9 Nm^2/C^2) x (20 x 10^-9 C) / (0.02 m) = 9 V
- Similarly, electric potential due to charge 2 (at x = 3 cm) at the origin = 6.75 V, charge 3 (at x = 4 cm) at the origin = 5.4 V, charge 4 (at x = 5 cm) at the origin = 4.5 V, and charge 5 (at x = 6 cm) at the origin = 3.857 V.
- Electric potential at the origin = Sum of electric potentials due to all the charges = 9 V + 6.75 V + 5.4 V + 4.5 V + 3.857 V = 29.507 V
- Rounding off the answer to the nearest integer, we get the electric potential at the origin as 29 V.

Answer:
The electric potential at the origin is 29 V (option 'D').
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

Five equal point charges of Q = 20 x 10-9C, are placed at x = 2,3,4,5 and 6 cm. The electric potential at origin will bea)416Vb)128Vc)325 Vd)261VCorrect answer is option 'D'. Can you explain this answer?
Question Description
Five equal point charges of Q = 20 x 10-9C, are placed at x = 2,3,4,5 and 6 cm. The electric potential at origin will bea)416Vb)128Vc)325 Vd)261VCorrect answer is option 'D'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Five equal point charges of Q = 20 x 10-9C, are placed at x = 2,3,4,5 and 6 cm. The electric potential at origin will bea)416Vb)128Vc)325 Vd)261VCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Five equal point charges of Q = 20 x 10-9C, are placed at x = 2,3,4,5 and 6 cm. The electric potential at origin will bea)416Vb)128Vc)325 Vd)261VCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Five equal point charges of Q = 20 x 10-9C, are placed at x = 2,3,4,5 and 6 cm. The electric potential at origin will bea)416Vb)128Vc)325 Vd)261VCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE). Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of Five equal point charges of Q = 20 x 10-9C, are placed at x = 2,3,4,5 and 6 cm. The electric potential at origin will bea)416Vb)128Vc)325 Vd)261VCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Five equal point charges of Q = 20 x 10-9C, are placed at x = 2,3,4,5 and 6 cm. The electric potential at origin will bea)416Vb)128Vc)325 Vd)261VCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Five equal point charges of Q = 20 x 10-9C, are placed at x = 2,3,4,5 and 6 cm. The electric potential at origin will bea)416Vb)128Vc)325 Vd)261VCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Five equal point charges of Q = 20 x 10-9C, are placed at x = 2,3,4,5 and 6 cm. The electric potential at origin will bea)416Vb)128Vc)325 Vd)261VCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Five equal point charges of Q = 20 x 10-9C, are placed at x = 2,3,4,5 and 6 cm. The electric potential at origin will bea)416Vb)128Vc)325 Vd)261VCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev