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Why is orientation of the partable radio with respect to broadcasting station important?
The orientation of a portable radio is important because the radio's antenna needs to align with the electromagnetic waves from the broadcasting station. Proper alignment ensures maximum signal reception and reduces interference, improving sound clarity. For more visit here: https://www.tiwariacademRead more
The orientation of a portable radio is important because the radio’s antenna needs to align with the electromagnetic waves from the broadcasting station. Proper alignment ensures maximum signal reception and reduces interference, improving sound clarity.
For more visit here:
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A capicitor has been charged by a d.c. source. What are the magnitudes of conduction and displacement currents, when it is fully charged?
When a capacitor is fully charged by a DC source, both the conduction current in the circuit and the displacement current between the plates become zero, as there is no change in the electric field or charge. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapterRead more
When a capacitor is fully charged by a DC source, both the conduction current in the circuit and the displacement current between the plates become zero, as there is no change in the electric field or charge.
For more visit here:
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A variable frequency a.c. source is connected to a capacitor. Will the displacement current change if the frequency of the a.c. source is decreased?
Yes, the displacement current will decrease if the frequency of the AC source is reduced. This is because displacement current depends on the rate of change of the electric field, which decreases with lower frequency. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physicRead more
Yes, the displacement current will decrease if the frequency of the AC source is reduced. This is because displacement current depends on the rate of change of the electric field, which decreases with lower frequency.
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Name the electromagnetic radiations used for (a) water purification and (b) LASIC eye surgery.
(a) Ultraviolet (UV) rays are used for water purification as they kill harmful microorganisms. (b) Ultraviolet (UV) laser is used in LASIK eye surgery to reshape the cornea and correct vision problems. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/
(a) Ultraviolet (UV) rays are used for water purification as they kill harmful microorganisms.
(b) Ultraviolet (UV) laser is used in LASIK eye surgery to reshape the cornea and correct vision problems.
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Special divices, like the klystron valve or the magnetron valve, are used for oroduction of electromagnetic waves. Name these waves and also write one of their application.
Klystron and magnetron valves produce microwaves. One application of microwaves is in radar systems, where they are used for detecting and tracking objects like aircraft and ships. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/
Klystron and magnetron valves produce microwaves. One application of microwaves is in radar systems, where they are used for detecting and tracking objects like aircraft and ships.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-8/