Answer:
the magnitude of the magnetic field is 1.23 x 10⁸ T.
Step-by-step explanation:
Given;
magnitude of the electric field, E = 3.7 V/m
The magnitude of the magnetic field is calculated as;
E = cB
where;
B is the magnitude of the magnetic field
c is the speed of light = 3 x 10⁸ m/s
From the above equation, the magnetic field, B, is calculated as;

Therefore, the magnitude of the magnetic field is 1.23 x 10⁸ T.