CUET Preparation Today
In an electromagnetic wave, the amplitude of magnetic field is $1.1 \times 10^{-6} T$. What is the amplitude of electric field? |
$3.70 N C^{-1}$ $37 N C^{-1}$ $330 N C^{-1}$ $3.30 N C^{-1}$ |
$330 N C^{-1}$ |
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 = $1.1×10^{-6}T$ $∴E_0=3×10^8×1.1×10^{-6}$ $=3.3×10^2V/m$ |
