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Radiofrequency choke uses core of
Options
(a) Air
(b) Iron
(c) Air and iron
(d) None of these
Correct Answer:
Air
Explanation:
Radio frequencies are higher frequencies. Air core chokes are therefore used.
Related Questions: - The temperature of a metal block is increased from 27⁰C to 84⁰C. The rate of radiated energy
- The ionisation energy of hydrogen is 13.6 eV. The energy of the photon released
- An object is 8 cm high. It is desired to form a real image 4 cm high at 60 cm from
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The temperature of a metal block is increased from 27⁰C to 84⁰C. The rate of radiated energy
- The ionisation energy of hydrogen is 13.6 eV. The energy of the photon released
- An object is 8 cm high. It is desired to form a real image 4 cm high at 60 cm from
- A beam of cathode rays is subjected to crossed Electric (E) and Magnetic fields (B)
- A milli ammeter of range 10 mA has a coil of resistance 1 ohm
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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