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An air core coil and an electric bulb are connected in series with an AC source. If an iron rod is put in the coil, then the intensity of light of the bulb will
Options
(a) remain same
(b) increase
(c) decrease
(d) first decrease then increase
Correct Answer:
decrease
Explanation:
If an iron rod is puts in the coil, then intensity of light of bulb will decrease because the iron rod increase the resistance.
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A charge Q is enclosed by a Gaussian spherical surface of radius R
- Two sound waves of wavelengths 5m and 6m formed 30 beats in 3 seconds
- Hard X-rays for the study of fractures in bones should have a minimum wavelength
- When alpha particles captures and electron, then it becomes a
- Stress to strain ratio is equivalent to
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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