Derive the expression for the motional and transformer emf. Calculate the maximum emf induced in a coil of 500 turns of radius 10 cm rotating at  30 rps in a magnetic field of 250 wb/m2.

Q: Suppose that a rectangular toroid has 1500 windings and a self-inductance of 0.04 H. If the height…

A: Given : Number of turns, N= 1500 Self Inductance, L =0.04 H Height , h = 0.08 m  Energy stored , U=…

Q: A coil of 300 turns moving perpendicular to the flux in uniform magnetic field experiences a flux…

A: The number of turns N=300 turns The magnetic flux change ∆ϕ=0.3 mWb=0.3×10-3Wb Time interval in…

Q: An emf is induced by rotating a 1067 turn, 20.0 cm diameter coil in the Earth's 3.33  10-5 T…

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Q: A 121-turn square wire coil of area 0.0420 m² and L = 20.5 cm rotates about a vertical axis at 1530…

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Q: A 133-turn square wire coil with sides of length L = 18.4cm rotates about a vertical axis at…

A: Here given a 133 turn square wire coil with sides of length L = 18.4 cm. The vertical axis rotates…

Q: A 0.240 m radius, 500 turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having…

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Q: The magnetic flux through a coil of wire containing two loops changes from -57.1 Wb to 17.7 Wb in…

A: Faraday's law of electromagnetic induction states that the magnitude of induced emf is equal to the…

Q: A coil of wire with 10 turns and a radius of 1.5 cm is oriented with the plane of the coil…

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Q: Suppose a 51-turn coil lies in the plane of the page in a uniform magnetic field that is directed…

A: This is a case of changing magnetic flux so Faraday's law will be applied which tells us that…

Q: An emf of 17.0 mV is induced in a 480-turn coil when the current is changing at the rate of 10.0…

A: The self induced emf in a RL circuit is defined as ε=L∆I∆t or we ca write  L=ε∆I∆t In this question,…

Q: A 0.65-T magnetic field is perpendicular to a circular loop of wirewith 73 turns and a radius of 18…

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Q: If the coil of a generator has 120 loops with an area of 0.49 m², what is the maximum emf produced…

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Q: A 9-turn generator coil with area 0.160 m2 rotates in a 1.30 T magnetic field.  At what frequency…

A: Given:Number no turn = 9Area = 0.160 m2Magnetic field = 1.30 TPeak emf = 135 V

Q: A ten-loop coil having a radius of 5.87 cm and a resistance of 48.9 Ω is in a 0.083 T uniform…

A: The expression for the induced emf is given by -  ε=N∆ϕB∆t .....(1) Where,…

Q: A coil is constructed from 6.4 m wire wound into circles with a radius of 3.2cm. Find the maximum…

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Q: A 80-cm side length square coil has 145 turns. An initial uniform magnetic field of strength 6.5 mT…

A: Given:-             B = 6.5 mT L = 80 cm N = 145 turns

Q: An emfis induced by rotating a 1107 turn, 20.0 cm diameter coil in the Earth's 3.53 x 10-5T magnetic…

A: initial flux == Nπr2B= 1107×π×0.222×3.53×10-5 Wb

Q: An emf is induced by rotating a 1060 turn, 20.0 cm diameter coil in the Earth's 4.85 x 10-5 T…

A: Number of turns, N=1060 Diameter, d=20 cm=0.20 m Radius, R=0.10 m Magnetic field, B=4.85×10-5 T Time…

Q: A coil with 205 turns of wire, a total resistance of 23 ohm, and a cross-sectional area of 0.25 m^2…

A: Given data: Number of turns of the coil, N=205 Total resistance of the coil, R=23 Ω Area of the…

Q: The rectangular coils in a 355-turn generator are 13 cm by 19 cm.What is the maximum emf produced by…

A: Given: The number of turns is 355. The dimensions are 13 cm by 19 cm. The angular speed is 505 rpm.…

Q: A 0.220 m radius, 506 turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having…

A: SOlution: given that r = 0.22 m N = 506 t = 4.17 ms emf = 10000 V

Q: A magnetic field increases from 0 to 0.55 T in 1.6 s. How manyturns of wire are needed in a circular…

A: The given values are, dB=0.55 Tdt=1.6 sd=12 cm=0.12 mε=9.0 Vr=d2=0.12 m2=0.06 m

Q: An emf of 28.5 mV is induced in a 501 turn coil when the current is changing at a rate of 10.5 A/s.…

A: Given Data: Induced emf ε=28.5 mV Number of turns of the coil N=501 Rate of change of current…

Q: An emf of 60.21 mV is induced in a 200-turn coil when the current is changing at the rate of 11.5…

A: Inductors are passive components that store energy in magnetic fields. When AC current is passed…

Q: A 0.230 m radius, 480 turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having…

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Q: the coil's sides are 14.6 cm long, the external magnetic field strength is Bext = 0.783 T, the coil…

A: Sides, a = 14.6 cm = 14.6×10-2 = 0.146 m Magnetic field, Bext = B = 0.783 T Number of turns, n = 37…

Q: An emf is induced by rotating a 1047 turn, 20.0 cm diameter coil in the Earth's 3.13  10-5 T…

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Q: An emf of 24.0 mV is induced in a 500-turn coil when the current is changing at a rate of 10.0 A/s.…

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Q: What is the induced emf in the below coil if it is moving upward at 4.2 m/s in a uniform magnetic…

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Q: An emf is induced by rotating a 1447 turn, 20.0 cm diameter coil in the Earth's 5.53 x 10-5 T…

A: Given that, Number of turns is 14447 and Magnetic field of Earth is 5.53*10^-5T and time is 10ms.…