Answer :

The electric field amplitude of the electromagnetic wave with the given magnetic field amplitude is 9 x 10^5 V/m.

Given the data in the question;

Magnetic field amplitude; Bm = 3.0mT = 3*10^-3 T

Electric field amplitude; Em = ?

It can be expressed as;

Em = c × Bm

Where c is the speed of light (c = 3 × 10^8 m/s) and Bm is the magnetic field amplitude.

We substitute our values into the expression above

Em = c ×  Bm

Em = 3 ×  10^8 m/s ×  3× 10^-3T

Em = 900,000V/m

Em = 9*10^5V/m

Therefore, the electric field amplitude of the electromagnetic wave with the given magnetic field amplitude is 9 x 10^5 V/m.

What is the Electric field?

When charge is present in any form, a point in space has an electric field that is connected to it. The value of E, often known as the electric field strength, electric field intensity, or just the electric field, expresses the strength and direction of the electric field. Without any precise information of what generated the field, simply knowing the value of the electric field at a certain location is sufficient to predict what would happen to electric charges nearby.

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