| ⇦ | 
| ⇨ |
what is the electric potential at a distance of 9cm from 3nC?
Options
(a) 270V
(b) 3V
(c) 300V
(d) 30V
Correct Answer:
300V
Explanation:
Given, q = 3 nC = 3 × 10⁻⁹ C and r = 9 cm = 9 × 10⁻² m
We know that, potential due to point charge is given by V = (1 / 4πε₀) (q / r)
= (9 × 10⁹ × 3 × 10⁻⁹) / 9 × 10⁻² = 3 × 10²
⇒ Electric potential, V = 300 V
Related Questions: - A uniform rod of length l is placed with one end in contact with the horizontal
- To measure the roughness of the surface of a material, which of the following microscope
- Two conducting spheres of radii 5 cm and 10 cm are given a charge of 15 μC each.
- The mirrors are inclined at an angle of 50⁰. The number of images formed for an object
- An ideal black body is equivalent to
Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A uniform rod of length l is placed with one end in contact with the horizontal
- To measure the roughness of the surface of a material, which of the following microscope
- Two conducting spheres of radii 5 cm and 10 cm are given a charge of 15 μC each.
- The mirrors are inclined at an angle of 50⁰. The number of images formed for an object
- An ideal black body is equivalent to
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply