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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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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The half life of radioactive isotope ‘X’ is 50 years. It decays to
- In Young’s double slit experiment, the wavelength of the light used is doubled
- when a magnetic field is applied on a stationary electron, then it
- The electric field in a certain region is acting radially outward and is given by E=Ar.
- A parallel plate air capacitor has capacity C, distance of seperation between plate
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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