First slide

Electrostatic potential energy

Question

There is an electric field E in x-direction. If the work done on moving a charge 0.2C through a distance of 2m along a line making an angle $60^{o}$ with the X-axis is 4.0 J , what is the value of E

Moderate

A

$\sqrt{3} N / C$
B

$4 N / C$
C

$5 N / C$
D

$20 N C^{- 1}$

Solution

$W = q V = q E d \cos θ \Rightarrow 4 = 0.2 \times E \times (2 \cos 60) = 0.2 E \times (2 \times 0.5) ∴ E = \frac{4}{0.2} = 20 N C^{- 1}$

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