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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: - Which of the following transitions will have highest emission wavelength?
- What is the dimension of impedance?
- The time period of a mass suspended from a spring is T. If the spring is cut into four
- The input resistance of a silicon transistor is 100 W. Base current is changed
- The force of repulsion between two electrons at a certain distance is F.
Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following transitions will have highest emission wavelength?
- What is the dimension of impedance?
- The time period of a mass suspended from a spring is T. If the spring is cut into four
- The input resistance of a silicon transistor is 100 W. Base current is changed
- The force of repulsion between two electrons at a certain distance is F.
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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