In any region of space where a magnetic field is changing in time, there is which of these?. A) None of these.B) induced electric field, also changing in time.C) All of these.D) even larger magnetic field.E) induced gravitational field.
B) induced electric field, also changing in time
The correct answer is B) induced electric field, also changing in time.
To understand why this is the case, let's consider Faraday's law of electromagnetic induction. According to this law, a changing magnetic field induces an electric field in the space surrounding it. This electric field is induced as a result of the changing magnetic field, and it will also vary with time.
To determine this answer in the future, you should consider the fundamental principles of electromagnetism and specifically the concept of electromagnetic induction. Understanding the relationship between changing magnetic fields and induced electric fields will allow you to identify the correct option in this scenario.