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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 product of pressure and volume hve thesame units as the product of
- Suppose for some reasons, radius of earth were to shrink by 1% of present value,
- An alternating voltage e=200s in100t is applied to a series combination
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The product of pressure and volume hve thesame units as the product of
- Suppose for some reasons, radius of earth were to shrink by 1% of present value,
- An alternating voltage e=200s in100t is applied to a series combination
- An open knife edge of mass 200g is dropped from height 5m on a cardboard
- Four indentical thin rods each of mass M and length l, form a square frame
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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