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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: - Choose the correct statement
- Excitation energy of a hydrogen like ion, in its first excitation state, is 40.8 eV.
- A body of mass m=3.513 kg is moving along the x-axis with a speed of 5 m/s
- An LED is constructed from a p-n junction based on a certain semi-conducting
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Choose the correct statement
- Excitation energy of a hydrogen like ion, in its first excitation state, is 40.8 eV.
- A body of mass m=3.513 kg is moving along the x-axis with a speed of 5 m/s
- An LED is constructed from a p-n junction based on a certain semi-conducting
- A ball is dropped into a well in which the water level is at a depth h below the top
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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