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A wire 88 cm long bent into a circular l...

A wire 88 cm long bent into a circular loop is placed perpendicular to the magnetic field of flux density `2.5 Wb m^(-2)` . Whitin 0.5 sec, the loop is changed into a square of each side 22 am and flux density is increased to `3.0 Wb m^(-2)`. Calculate the value of e.m.f.induced.

Answer

Step by step text solution for A wire 88 cm long bent into a circular loop is placed perpendicular to the magnetic field of flux density 2.5 Wb m^(-2) . Whitin 0.5 sec, the loop is changed into a square of each side 22 am and flux density is increased to 3.0 Wb m^(-2). Calculate the value of e.m.f.induced. by PHYSICS experts to help you in doubts & scoring excellent marks in Class 12 exams.

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A wire 40 cm long bent into a rectangular loop 15 cmxx5 cm is placed perpendicular to the magnetic field whose flux density is 0.8 Wbm ^(-2) . Within 1.0 second, the loop is changed into a 10 cm square and flux density increases to 1.4 Wbm^(-2) . Calculate the value of induced emf.

A wire 88 cm long bent into a circular loop is placed perpendicular to the magnetic field of flux density is increased to 3.0 wbm^(-2) . Calculate the value of the emf induced .

Knowledge Check

  • A given wire is bent into a circular loop of radius 7cm and is placed perpendicular to a magnetic field of 1.0T .Within 0.1 second ,the loop is changed to a 100cm square and the field increases to 1.8T .The induced emf in the coil will be

    A
    `13mV`
    B
    `26mV`
    C
    `39mV`
    D
    `52mV`

  • A two metre wire is moving with a velocity of 1 m/sec perpendicular to a magnetic field of 0.5 "weber"//m^(2) . The e.m.f. induced in it will be

    A
    `0.5` volt
    B
    `0.1` volt
    C
    1 volt
    D
    2 volt

  • A straight conductor of length 0.4 m is moved with a speed of 7 m/s perpendicular to the magnetic field of intensity of 0.9 Wb//m^(2) . The induced e.m.f. across the conductor will be

    A
    `7.25 V`
    B
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    C
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    D
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