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Two devices of rating 44W ;200V &11W;220V are connected in series.The combination is connected across a 440V mains . The fuse of which of the two devices is likely to burn when switch is on ? Justify your answer.?
Verified Answer
?Two devices of rating 44W ;200V &11W;220V are connected in series.The...
The total current flowing through the series circuit will be
I = 440v / RT
here
RT is the total resistance offered by the two devices
and
RT = R1 + R2 = V12/P1 + V22/P2 = (2202 / 44) + (2202 / 11)
so,
RT = 1100 ohms + 4400 ohms = 5500 ohms
so,
I = 440 / 5500 = 0.08A
and
the rated currents or the maximum current allowable for both devices will be
I1 = P1/V1 = 44/220 = 0.2A
I2 = P2/V2 = 11/220 = 0.05A
now
as the current supplied 'I' is greater than the rated current for the second device the fuse will be blown in this case.
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Most Upvoted Answer
?Two devices of rating 44W ;200V &11W;220V are connected in series.The...
Device 1: A light bulb that uses 44W and operates at 200V.

Device 2: A computer monitor that uses 44W and operates at 200V.
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?Two devices of rating 44W ;200V &11W;220V are connected in series.The combination is connected across a 440V mains . The fuse of which of the two devices is likely to burn when switch is on ? Justify your answer.?
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?Two devices of rating 44W ;200V &11W;220V are connected in series.The combination is connected across a 440V mains . The fuse of which of the two devices is likely to burn when switch is on ? Justify your answer.? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about ?Two devices of rating 44W ;200V &11W;220V are connected in series.The combination is connected across a 440V mains . The fuse of which of the two devices is likely to burn when switch is on ? Justify your answer.? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for ?Two devices of rating 44W ;200V &11W;220V are connected in series.The combination is connected across a 440V mains . The fuse of which of the two devices is likely to burn when switch is on ? Justify your answer.?.
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