Speed of microwaves as well as UV radiations remain same in vacuum at 3 × 10⁸ Ms-¹ . Class 12 Physics Chapter 8 Electromagnetic Waves Session 2024-2025.
Discussion Forum Latest Questions
Eo = c Bo or c = Eo/Bo . Class 12 Physics Chapter 8 Electromagnetic Waves Session 2024-2025.
If a plane electromegnetic wave travels in vacuum along z- direction, than direction of electric field vector is along x- direction and that of magnetic field along y- directionor vice versa. Class 12 Physics Chapter 8 Electromagnetic Waves Session 2024-2025.
In electromagnetic waves electric and magnetic fields oscillate in mutually perpendiculor directions as well as perpendicular to the direction of propagation if e.m. wave. Class 12 Physics Chapter 8 Electromagnetic Waves Session 2024-2025.
Frequency of electromagnetic waves = Frequency of oscillating charge = v. Class 12 Physics Chapter 8 Electromagnetic Waves Session 2024-2025.
Electromagnetic Waves are coupled time-varying electric and magnetic fields propagating in space with the speed of light. Class 12 Physics Chapter 8 Electromagnetic Waves Session 2024-2025.
In order to reduce eddy currents in the transformer. Class 12 Physics Chapter 7 Alternating current Session 2024-2025.
No, because there is no change in magnetic flux in a d.c. circuit. Class 12 Physics Chapter 7 Alternating current Session 2024-2025.
As susceptibility of a magnetic material is – 2.6 × 10-⁵, the material is a diamagnetic material. two important properties of these materials are: (i) These are feebly repelled by a magnetic field and tend to move from stronger to ...
For definition, see point number 23 under the heading “Chapter At Glance”. Copper (a diamagnetic material) has negative susceptibility but aluminium (a paramagnetic material) has positive susceptibility. Nagative susceptibility signifies that the material is repelled in a magnetic field and ...