Answer:
The value is
Step-by-step explanation:
From the question we are told that
The magnitude of the electric fields is
![E = 3.80 V/m](https://img.qammunity.org/2021/formulas/physics/college/ylc9ro9wwmo6udnm90a7hua54bhjk8tmr1.png)
Generally speed of light is mathematically represented as
![c = (|\vec E|)/( |\vec B|)](https://img.qammunity.org/2021/formulas/physics/college/kc7cez7lo1o5wc6pokeey3qi4onubyqs9m.png)
Here c is the speed of light with value
![c = 3.0*10^(8) \ m/s](https://img.qammunity.org/2021/formulas/chemistry/college/jwqbvh4csevamfq8jigmzd3ldsolrs0oou.png)
is the magnitude of the magnetic field so
=>
=>
=>