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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.
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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
- Two coherent sources of intensity ratio α interfere. In interference pattern,
- For the action of a common Base (CB) transistor, (E=emitter, B= base, C= collector)
- A 5 watt source emits monochromatic light of wavelength 5000Å. When placed
- The magnetic field at a point on the axis of a long solenoid having 5 turns per cm
- Three capacitors each of capacitance C and of breakdown voltage V are joined in series
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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