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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.
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- Two identical circular coils A and B are kept on a horizontal tube
- The de-Broglie wavelength of an electron moving with a velocity 1.5×10⁸ ms⁻¹ is equal
- The value of coefficient of volume expansion of glycerin is 5 x 10⁻⁴ k⁻¹.
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A heavy stone hanging from a massless string of length 15 m is projected
- Two identical circular coils A and B are kept on a horizontal tube
- The de-Broglie wavelength of an electron moving with a velocity 1.5×10⁸ ms⁻¹ is equal
- The value of coefficient of volume expansion of glycerin is 5 x 10⁻⁴ k⁻¹.
- In the Bohr’s model of hydrogen atom, the ratio of the kinetic energy to the total
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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