Chapter 37, Problem 48A

Would electromagnetic waves exist if changing magnetic fields could produce electric fields but changing electric fields could not in turn produce magnetic fields? Explain.

To determine

To explain: Whether an electromagnetic wave can exist if changing magnetic fields could produce electric fields but reverse is not happening.

Explanation of Solution

Introduction: 

Electromagnetic waves contain electric and magnetic fields. According to the theory of property of photon, the electromagnetic wave cannot be affected by electric and magnetic fields and it is neutral. 

Explanation: 

An electromagnetic wave depends on the changing electric field induces in the magnetic field and the change in the magnetic field produces an electric field. 

The property of both electric and magnetic field allows electromagnetic waves to be self-propagated and can travel in the vacuum.

So, change in the magnetic field would not produce the magnetic field.

Conclusion: 

An electromagnetic wave depends on the changing electric field induces in the magnetic field and the change in the magnetic field produces an electric field.