SATHEE: Modern Physics 7 Question 34

Modern Physics 7 Question 34

35. The magnetic field in a travelling electromagnetic wave has a peak value of $20 n T$ . The peak value of electric field strength is

(a) $3 V / m$

(b) $6 V / m$

(d) $12 V / m$

(2013 Main)

Show Answer

Solution:

Peak value of electric field

$E_{0} = B_{0} c = 20 \times 10^{- 9} \times 3 \times 10^{8} = 6 V / m$

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Modern Physics 7 Question 34

35. The magnetic field in a travelling electromagnetic wave has a peak value of 20nT. The peak value of electric field strength is

Solution:

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35. The magnetic field in a travelling electromagnetic wave has a peak value of $20 n T$ . The peak value of electric field strength is