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VITEEE 2018 Solved Paper
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© examsnet.com
Question : 16
Total: 125
The magnetic field in a travelling electromagnetic wave has a peak value of 20 nT. The peak value of electric field strength is
3 V/m
6V/m
9V/m
12V/m
Validate
Solution:
From question,
B
0
= 20nT = 20 ×
10
−
9
T
→
E
0
=
→
B
0
×
→
C
|
→
E
0
|
=
|
→
B
0
|
,
|
→
C
|
= 20 ×
10
−
9
× 3 ×
10
8
= 6 V/m
© examsnet.com
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