| ⇦ | 
| ⇨ |
If two electric bulbs have 40 W and 60 W ratings at 220 V, then the ratio of their resistances will be
Options
(a) (3:2)
(b) (2:3)
(c) (3:4)
(d) (4:3)
Correct Answer:
(3:2)
Explanation:
P = V² / R
⇒ R₁ / R₂ = P₂ / P₁ = 60 / 40 = 3 / 2 = 3 : 2
Related Questions: - Weber/m² is equal to
- A source of sound S emitting waves of frequency 100 Hz and an observer
- Which gate can be obtained by shorting both the input terminals of a NOR gate?
- The dimensions of universal gas constant are
- Two charges each equal to 2µ C are 0.5m apart. If both of them exist inside vacuum
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Weber/m² is equal to
- A source of sound S emitting waves of frequency 100 Hz and an observer
- Which gate can be obtained by shorting both the input terminals of a NOR gate?
- The dimensions of universal gas constant are
- Two charges each equal to 2µ C are 0.5m apart. If both of them exist inside vacuum
Topics: Magnetic Effects of Current and Magnetism (167)
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