1. Displacement current is due to:
2. Displacement current is always :
3. EMW are produced by:
4. Who first demonstrated the existence of em waves?
5. If \(\vec{B}\) is the magnetic field vector and \(\vec{E}\) is the electric field vector in an em wave, then which of the following relations is correct? Here c is the speed of fight:
6. The dimensions of E/Bare same as that of:
7. Name the law which states that a varying electric field produces a magnetic field:
8. The existence of EMW was experimentally established by :
9. An EMW of v = 3 MHz passes from vacuum into dielectric medium with permittivity Er = 4, then:
10. Frequency of a wave is 6 × 1015. Hz. The wave is :