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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 current of 5 A is passing through a metallic wire of cross-sectional area 4×10⁻⁶ m².
- Which of the following physical quantities has neither dimensions nor unit
- A 50Hz AC signal is applied in a circuit of inductance of (1/π)H and resistance 2100Ω
- A wire of length 1 m is placed in a uniform magnetic field of 1.5 tesla at an angle
- Four cells, each of emf E and internal resistance r, are connected in series across
Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A current of 5 A is passing through a metallic wire of cross-sectional area 4×10⁻⁶ m².
- Which of the following physical quantities has neither dimensions nor unit
- A 50Hz AC signal is applied in a circuit of inductance of (1/π)H and resistance 2100Ω
- A wire of length 1 m is placed in a uniform magnetic field of 1.5 tesla at an angle
- Four cells, each of emf E and internal resistance r, are connected in series across
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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