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Magnetic fluxin Weber in closed circuit of resistance 15 ohm varies with time t sec as= 2t² – 3t + 1. The magnitude of induced emf at t = 0.25 sec is 
  • a)
    4V
  • b)
    2V
  • c)
    8V
  • d)
    6V
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Magnetic fluxin Weber in closed circuit of resistance 15 ohm varies wi...

= 4t-3
At t = 0.25s
e= 2V
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Most Upvoted Answer
Magnetic fluxin Weber in closed circuit of resistance 15 ohm varies wi...
We know that, E = -dΦ/dt,...

E = -d/dt {2t² - 3t + 1}
= -(4t - 3)
at t = 0.25 sec,...
E = -(4×0.25 - 3) = 2 V
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Magnetic fluxin Weber in closed circuit of resistance 15 ohm varies wi...
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Magnetic fluxin Weber in closed circuit of resistance 15 ohm varies with time t sec as= 2t² – 3t + 1. The magnitude of induced emf at t = 0.25 sec isa)4Vb)2Vc)8Vd)6VCorrect answer is option 'B'. Can you explain this answer?
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Magnetic fluxin Weber in closed circuit of resistance 15 ohm varies with time t sec as= 2t² – 3t + 1. The magnitude of induced emf at t = 0.25 sec isa)4Vb)2Vc)8Vd)6VCorrect answer is option 'B'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Magnetic fluxin Weber in closed circuit of resistance 15 ohm varies with time t sec as= 2t² – 3t + 1. The magnitude of induced emf at t = 0.25 sec isa)4Vb)2Vc)8Vd)6VCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Magnetic fluxin Weber in closed circuit of resistance 15 ohm varies with time t sec as= 2t² – 3t + 1. The magnitude of induced emf at t = 0.25 sec isa)4Vb)2Vc)8Vd)6VCorrect answer is option 'B'. Can you explain this answer?.
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