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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.
Related Questions: - The optical path of a monochromatic light is same if it goes through 4.0 cm
- Light is emitted when
- The pair of quantities having same dimensions is
- The value of coefficient of volume expansion of glycerin is 5 x 10⁻⁴ k⁻¹.
- In nuclear fusion, two nuclei come together to form a large nucleus.
Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The optical path of a monochromatic light is same if it goes through 4.0 cm
- Light is emitted when
- The pair of quantities having same dimensions is
- The value of coefficient of volume expansion of glycerin is 5 x 10⁻⁴ k⁻¹.
- In nuclear fusion, two nuclei come together to form a large nucleus.
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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