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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
- What should be the velocity(v) of a sound source moving towards a stationary observer
- A projectile is fired from the surface of the earth with a velocity of 5 m s⁻¹ and angle
- What determines the nature of the path followed by the particle?
- RMS velocity of gas is proportional to
- A stone of mass 1 kg tied to a light inexensible string of length L=10/3 is whirling
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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