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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 necessary condition in making of a junction transistor
- The equivalent resistance of two resistors connected in series is 6 Ω
- In thermodynamics processes which of the following statements is not true?
- In Young’s experiment, the third bright band for light of wavelength 6000Å
- A galvanometer coil has a resistance of 15 ohm and gives full scale deflection
Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The necessary condition in making of a junction transistor
- The equivalent resistance of two resistors connected in series is 6 Ω
- In thermodynamics processes which of the following statements is not true?
- In Young’s experiment, the third bright band for light of wavelength 6000Å
- A galvanometer coil has a resistance of 15 ohm and gives full scale deflection
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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