Em Waves Question 86
Question: The transmitting antenna of a radio-station is mounted vertically. At a point 10 km due north of the transmitter the peak electric field is $ {{10}^{-3}},V\text{/}m. $ The amplitude of the radiated magnetic field is
Options:
A) $ 3.33\times {{10}^{-10}}T $
B) $ 3.33\times {{10}^{-12}}T $
C) $ {{10}^{-13}}T $
D) $ 3\times 10^{5}T $
Show Answer
Answer:
Correct Answer: B
Solution:
[b] $ B _{0}=\frac{E _{0}}{c}=\frac{{{10}^{-3}}}{3\times 10^{8}}=3.3\times {{10}^{-12}}T $
BETA
