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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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- During an adiabatic process, the pressure of a gas is found to be proportional
- What are the unit of K = 1 / (4 π ?￢ﾂﾒ)
- The moment of inertia of a thin uniform rod of mass M and length L about an axis
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A body is hangfing from a rigid support by an inextensible string of length
- During an adiabatic process, the pressure of a gas is found to be proportional
- What are the unit of K = 1 / (4 π ?￢ﾂﾒ)
- The moment of inertia of a thin uniform rod of mass M and length L about an axis
- The density of ice is 0.9 g/cc and that of sea water is 1.1 g/cc
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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