| ⇦ | 
| ⇨ |
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: - A condenser of capacity C is charged to a potential difference of V₁. The plates
- Two resistors of 6Ω and 9Ω are connected in series to a 120 V source.
- A parallel plate air capacitor is charged to a potential difference of V volts.
- A metal wire of circular cross-section has a resistance R₁. The wire is now stretched
- The optical path of a monochromatic light is same if it goes through 4.0 cm
Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A condenser of capacity C is charged to a potential difference of V₁. The plates
- Two resistors of 6Ω and 9Ω are connected in series to a 120 V source.
- A parallel plate air capacitor is charged to a potential difference of V volts.
- A metal wire of circular cross-section has a resistance R₁. The wire is now stretched
- The optical path of a monochromatic light is same if it goes through 4.0 cm
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply