A plane electromagnetic wave of frequency 100MHz travelling in vacuum along the x-direction. At a particular point in space and time, B=2.0×10−8k^T . (where k^ is unit vector along z-direction) What is E . at this point ? (speed of light c=3×108 m/s )

E=B×vE=(2×10−8k)×(3×108i^)E=6j^

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A plane electromagnetic wave of frequency 100 {MHz} travelling

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A plane electromagnetic wave of frequency $100 MHz$ travelling in vacuum along the $x$ -direction. At a particular point in space and time, $B = 2.0 \times 1 0^{- 8} \hat{k} T$ . (where $\hat{k}$ is unit vector along z-direction) What is $E$ . at this point ? (speed of light $c = 3 \times 1 0^{8} m / s$ )

0.6 \hat{j} V / m

0.6 \hat{k} V / m

6.0 \hat{k} V / m

6.0 \hat{j} V / m

Views: 5,735 students

Updated on: Sep 8, 2023

Exam:

JEE Mains 2021 Mar 18 Shift 1

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Elijah Discussed

A plane electromagnetic wave of frequency

100 MHz

travelling in vacuum along the

x

-direction. At a particular point in space and time,

B = 2.0 \times 1 0^{- 8} \hat{k} T

. (where

\hat{k}

is unit vector along z-direction) What is

E

. at this point ? (speed of light

c = 3 \times 1 0^{8} m / s

)

8 mins ago

Discuss this question LIVE

8 mins ago

Text solutionVerified

E = B \times v E = (2 \times 1 0^{- 8} k) \times (3 \times 1 0^{8} \hat{i}) E = 6 \hat{j}

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Question Text	A plane electromagnetic wave of frequency $100 MHz$ travelling in vacuum along the $x$ -direction. At a particular point in space and time, $B = 2.0 \times 1 0^{- 8} \hat{k} T$ . (where $\hat{k}$ is unit vector along z-direction) What is $E$ . at this point ? (speed of light $c = 3 \times 1 0^{8} m / s$ )
Updated On	Sep 8, 2023
Topic	Electromagnetic Waves
Subject	Physics
Class	Class 12
Answer Type	Text solution:1 Video solution: 3
Upvotes	252
Avg. Video Duration	3 min

Text solutionVerified

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A plane electromagnetic wave of frequency 100MHz travelling in vacuum along the x-direction. At a particular point in space and time, B=2.0×10−8k^T . (where k^ is unit vector along z-direction) What is E . at this point ? (speed of light c=3×108 m/s )

Text solutionVerified

Filo tutor solutions (3)

Questions from JEE Mains 2021 - PYQs

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