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In an electromagnetic wave, the electric...

In an electromagnetic wave, the electric and magnetising fields are 100 `"Vm"^(-1)` and 0.265 `"Am"^(-1)`. The maximum energy flow is

A

`26.5 "W/m"^(2)`

B

`36.5"W/m"^2`

C

`46.7"Wm"^2`

D

`765 "W/m"^2`

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The correct Answer is:
To find the maximum energy flow in an electromagnetic wave given the electric field \( E_0 \) and the magnetic field \( B_0 \), we can use the relationship between these fields and the intensity of the wave. ### Step-by-step Solution: 1. **Identify the given values**: - Electric field \( E_0 = 100 \, \text{Vm}^{-1} \) - Magnetic field \( B_0 = 0.265 \, \text{Am}^{-1} \) 2. **Understand the relationship between electric field, magnetic field, and intensity**: - The intensity \( I \) of an electromagnetic wave is given by the product of the maximum electric field and the maximum magnetic field: \[ I_{\text{max}} = E_0 \cdot B_0 \] 3. **Substitute the values into the formula**: \[ I_{\text{max}} = 100 \, \text{Vm}^{-1} \times 0.265 \, \text{Am}^{-1} \] 4. **Calculate the maximum intensity**: \[ I_{\text{max}} = 100 \times 0.265 = 26.5 \, \text{Wm}^{-2} \] 5. **Interpret the result**: - The maximum energy flow (intensity) in the electromagnetic wave is \( 26.5 \, \text{Wm}^{-2} \). ### Final Answer: The maximum energy flow in the electromagnetic wave is \( 26.5 \, \text{Wm}^{-2} \).

To find the maximum energy flow in an electromagnetic wave given the electric field \( E_0 \) and the magnetic field \( B_0 \), we can use the relationship between these fields and the intensity of the wave. ### Step-by-step Solution: 1. **Identify the given values**: - Electric field \( E_0 = 100 \, \text{Vm}^{-1} \) - Magnetic field \( B_0 = 0.265 \, \text{Am}^{-1} \) ...
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