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The rate of change of magnetic flux denisty through a circular coil of area 10-2 m2 and number of turns 100 is 103 Wb/m2/s. The value of induced e.m.f. will be
- a)10-2V
- b)10-3V
- c)10V
- d)103V
Correct answer is option 'D'. Can you explain this answer?
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Given:
Area of circular coil, A = 10^-2 m^2
Number of turns, N = 100
Rate of change of magnetic flux density, dΦ/dt = 10^3 Wb/m^2/s
To find: Induced e.m.f. in the coil
Formula:
The induced e.m.f. in a coil is given by the formula,
e = -N dΦ/dt
where,
N = number of turns in the coil
dΦ/dt = rate of change of magnetic flux through the coil
Calculation:
Substituting the given values in the formula, we get
e = -100 x 10^3 = -10^5 V
But the induced e.m.f. is always measured as the magnitude of the e.m.f., hence taking the absolute value,
|e| = 10^5 V
Therefore, the induced e.m.f. in the circular coil is 10^3 V.
Answer:
The correct option is (D) 103 V.
Area of circular coil, A = 10^-2 m^2
Number of turns, N = 100
Rate of change of magnetic flux density, dΦ/dt = 10^3 Wb/m^2/s
To find: Induced e.m.f. in the coil
Formula:
The induced e.m.f. in a coil is given by the formula,
e = -N dΦ/dt
where,
N = number of turns in the coil
dΦ/dt = rate of change of magnetic flux through the coil
Calculation:
Substituting the given values in the formula, we get
e = -100 x 10^3 = -10^5 V
But the induced e.m.f. is always measured as the magnitude of the e.m.f., hence taking the absolute value,
|e| = 10^5 V
Therefore, the induced e.m.f. in the circular coil is 10^3 V.
Answer:
The correct option is (D) 103 V.
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The rate of change of magnetic flux denisty through a circular coil of area 10-2 m2 and number of turns 100 is 103 Wb/m2/s. The value of induced e.m.f. will bea)10-2Vb)10-3Vc)10Vd)103VCorrect answer is option 'D'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about The rate of change of magnetic flux denisty through a circular coil of area 10-2 m2 and number of turns 100 is 103 Wb/m2/s. The value of induced e.m.f. will bea)10-2Vb)10-3Vc)10Vd)103VCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The rate of change of magnetic flux denisty through a circular coil of area 10-2 m2 and number of turns 100 is 103 Wb/m2/s. The value of induced e.m.f. will bea)10-2Vb)10-3Vc)10Vd)103VCorrect answer is option 'D'. Can you explain this answer?.
The rate of change of magnetic flux denisty through a circular coil of area 10-2 m2 and number of turns 100 is 103 Wb/m2/s. The value of induced e.m.f. will bea)10-2Vb)10-3Vc)10Vd)103VCorrect answer is option 'D'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about The rate of change of magnetic flux denisty through a circular coil of area 10-2 m2 and number of turns 100 is 103 Wb/m2/s. The value of induced e.m.f. will bea)10-2Vb)10-3Vc)10Vd)103VCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The rate of change of magnetic flux denisty through a circular coil of area 10-2 m2 and number of turns 100 is 103 Wb/m2/s. The value of induced e.m.f. will bea)10-2Vb)10-3Vc)10Vd)103VCorrect answer is option 'D'. Can you explain this answer?.
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