Question

Pick out the wrong statement.

• A. Gauss’s law of magnetism is given by \( \oint \mathbf{B} \cdot d\mathbf{s} = 0 \)
• B. An EM wave is a wave radiated by a charge at rest and propagates through electric field only
• C. A time varying electric field is a source of changing magnetic field
• D. Faraday's law of EM induction is \( \int \mathbf{E} \cdot d\mathbf{l} = - \frac{d\Phi_B}{dt} \)

Hint:

Electromagnetic waves require both electric and magnetic fields for propagation, and are generated by accelerating charges.

Answer 1

The Correct Option is B

An electromagnetic wave is created by a charge in motion, not at rest, and it propagates through both electric and magnetic fields. The statement about it propagating through only the electric field is incorrect.