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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: - A wire having resistance 12Ω is bent in the form of an equilateral triangle.
- The area of cross-section of one limb of an U-tube is twice that of the other.
- Time period of oscillation of a magnet is 2 sec. When it is remagnetised
- A small part of the rim of a fly wheel breaks off while it is rotating at a constant
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A wire having resistance 12Ω is bent in the form of an equilateral triangle.
- The area of cross-section of one limb of an U-tube is twice that of the other.
- Time period of oscillation of a magnet is 2 sec. When it is remagnetised
- A small part of the rim of a fly wheel breaks off while it is rotating at a constant
- A person can see clearly objects only when they lie between 50 cm and 400 cm from
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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