First slide

Potential energy

Question

What is the potential energy of the two equal positive point charges of 1 μC each held 1 m apart in air?

Easy

A

9 x 10^-3 J
B

9 x 10^-3 eV
C

2 eV/m
D

Zero

Solution

$By using U = 9 \times 10^{9} \frac{Q_{1} Q_{2}}{r} \Rightarrow U = 9 \times 10^{9} \times \frac{10^{- 6} \times 10^{- 6}}{1} = 9 \times 10^{- 3} J$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App