railway RRB JE (CBT I + CBT II) Mock Test 2024 Electromagnetic Theory Electromagnetic Wave Propagation Wave Propagation in Lossless Medium
An electromagnetic wave propagates through a lossless insulator with a velocity 1.5 × 1010 cm/s. Calculate the electric and magnetic properties of the insulator if its intrinsic impedance is 90π ohms:
1
εr = 2.66 μr = 1.5
2
εr = 1.5 μr = 2.66
3
εr = 1.2 μr = 2.0
4
εr = 2.0 μr = 1.2