In an electromagnetic wave, the amplitude of magnetic field is $1.1 \times 10^{-6} T$. What is the amplitude of electric field?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → $330 N C^{-1}$
$E_0=C.B_0$ [for EM wave]
where,
$E_0$ = Amplitude of electric field
$B_0$ = Amplitude of magnetic field = $1.1×10^{-6}T$
$∴E_0=3×10^8×1.1×10^{-6}$
$=3.3×10^2V/m$