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प्रश्न
This is an example of step-up transformer.
उत्तर
- A step-up transformer increases the output voltage by having more turns in the secondary coil than in the primary coil (Ns > Np).
- It is used in power transmission, X-ray machines, and microwave ovens to increase voltage while reducing current.
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संबंधित प्रश्न
Arrange the following electromagnetic wave in the order of their increasing wavelength:
(a) γ- rays
(b) Microwaves
(c) X-rays
(d) Radio waves
Suppose that the electric field amplitude of an electromagnetic wave is E0 = 120 N/C and that its frequency is v = 50.0 MHz.
- Determine B0, ω, k, and λ.
- Find expressions for E and B.
How are electric vector `(vec "E")`, magnetic vector `(vec "B")` and velocity vector `(vec "C")` oriented in an electromagnetic wave?
Speed of electromagnetic waves is the same
What are electromagnetic waves?
Write down the integral form of modified Ampere’s circuital law.
Write notes on Ampere-Maxwell law.
The magnetic field of a plane electromagnetic wave travelling in +ve z-direction is described by ______.
Magnitude of the electric and the magnetic fields in a plane electromagnetic wave are related by ______.
Even though an electric field E exerts a force qE on a charged particle yet the electric field of an EM wave does not contribute to the radiation pressure (but transfers energy). Explain.
