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Two bulbs 40 watt and 60 watt and rated voltage 240 V are connected in series across a potential difference of 420 V. Which bulb will work at above its rated voltage
Options
(a) 40 W
(b) 60 W
(c) both 40 W and 60 W
(d) none of the bulbs
Correct Answer:
40 W
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - In a primary coil 5 A current is flowing on 220 V. In the secondary coil 2200 V
- In an ammeter, 0.2% of main current passes through the galvanometer
- A body of mass 3 kg acted upon by a constant force is displaced by S meter
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Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In a primary coil 5 A current is flowing on 220 V. In the secondary coil 2200 V
- In an ammeter, 0.2% of main current passes through the galvanometer
- A body of mass 3 kg acted upon by a constant force is displaced by S meter
- When photons of energy hν are incident on the surface of photosensitive
- A step down transformer is used on a 1000 V line to deliver 20 A at 120 V
Topics: Magnetic Effects of Current and Magnetism (167)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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