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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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- A cockroach is moving with a velocity v in anticlockwise direction on the rim
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The number of NAND gates required to form an AND gate is
- A cockroach is moving with a velocity v in anticlockwise direction on the rim
- If a body travels half the distance with velocity v1 and the next half with velocity v2
- A satellite is launched into a circular orbit of radius R around earth while
- Identify the paramagnetic substance
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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