A coil consists of 750 turns and a current of 10A in the coil gives rise to a magnetic flux of 1200wb. Calculate the inductance of the coil and the average emf induced in the coil when the current is reversed in 0.01s.

Q: An emf of 0.60 V is induced across a coil when the current through it changes uniformly from 0.30 to…

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Q: The ratio of transformation is 50. If 220V AC is supplied to its primary coil, voltage in secondary…

A: Given: The ratio of transformation is 50. The supplied voltage in the primary is 220 V.…

Q: 1) A voltage is varied in a primary solenoid with 2900 +/- 100 turns of coil. The length of the…

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Q: A coil has 2.55-ΩΩ resistance and 121-mH inductance. If the current is 3.00 A and is increasing at…

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Q: A coil produces an emf of 1.50 V when the current in it changes from -12.0 mA to +32.0 mA in 4.00…

A: According to the laws of electromagnetic induction, the induced emf is given by  e = L d Id t where,…

Q: If two coils placed next to one another have a mutual inductance of 5.00 mH, what voltage is induced…

A: Mutual inductance, M = 5 mH  change in current, dI =2 A  change in time, dt = 30 ms

Q: What is the inductance of a coil in which the average emf induced is 21V when the current in the…

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Q: A toroidal coil has an inductance of 47 mH. Find maximum self-induced emf in the coil when the…

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Q: When the 20.0 A current through an inductor is turned off in 1.50 ms, an 800 V emf is induced,…

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Q: Current in a circuit falls from 5.0 A to 0.0 A in 0.1 s. If an average emf of

A: Given: The initial current is 5.0 A.           The final current is 0.0 A.            The time is…

Q: n inductance of 3 H and a wire resistance of 15 Ω. How long will it take for the current to reach…

A: GivenL=3 HR=15 Ω

Q: What is the inductance of a coil if it produces an emf of 8.46V when the current in it changes from…

A: Given: Current ranges from -28.3 mA to 33.2 mA emf is 8.46 V

Q: Two coils are made using the same length of wire and the same number of turns per length, but coil A…

A: Given that, The coils are made using the same length of wire and the same number of turns per…

Q: A pair of adjacent coils has a mutual inductance of 1.5 H. If the current in one coil changes from 0…

A: Faraday gave the principles of Electromagnetic Induction which meant that change in the magnetic…

Q: An AC input voltage of 5.0 V is applied across the primary =30 turns of a transformer. What is the…

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Q: The current in an inductor decreases linearly from 2 mA to zero in 4 ms. Calculate the average emf…

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Q: A coil draws 1875 watts when connected to a 165 V dc source. It consumes 30.72 watts when use on a…

A: Given data Power: Pdc= 1875 WPac =30.72 W Voltage: Vdc = 165 V  Vac =240 V frequency: f = 60 Hz   It…

Q: 4.30 32 3. In the circuit the emf ɛ = 21.3 volts and the inductance L= 150 mH. What will be the…

A: emf (E) = 21.3 volts L = 150 mH = 0.15 H t = 15.5 ms = 0.0155 s

Q: A coil has a DC resistance of 78 Ω and an impedance of 160 Ω at a frequency of 3 kHz. Neglect the…

A: Given R=78  ΩZ=160  Ωf =3000 HzZ =R2+(XL)21602=782+(XL)2 XL=139.699

Q: If two coils placed next to one another have a mutual inductance of 7.50 mH, what voltage (in V) is…

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Q: The flux linkage through a certain coil of 0.75 ohm resistance would be 26 mWb if there were a…

A: a) The inductance of the coil is given by,

Q: An ideal step-up transformer with turn ratio 1:30 is supplied with an input power of 120 W. If the…

A: According to the ideal transformer, V1V2=N1N2V1=N1N2V2=130210 V=7 V Find the input current.…

Q: When 100 volt D.C is applied across a coil, a current of one ampere flows through it, when 100V ac…

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Q: Two coils, 1 and 2, are separated in space, and have a fixed distance between them. When coil 2 has…

A: Given -  Rate of increase of current in coil -1,   di1/dt  = 24.0 A/s EMF induced in coil -2 due…

Q: coil has 2.55-Ω resistance and 121-mH inductance. If the current is 3.00 A and is increasing at a…

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Q: The magnetic flux through a coil is 2.50 mWb.  The current in the coil is 1.00 A and has 100 turns…

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Q: Current in a circuit falls from 5.0 A to 0.0 A in 0.1 s. If an average emf of 200 V induced, give an…

A: The initial current is 5.0A, Final current is 0.0A, time taken is 0.1s, and the average emf is 200V.…

Q: coil rated 600 Watts, 330 Volts, 60 Hz has a resistance of 20 Ω. What is the inductance of the coil…

A: Given: The rated power and voltage is 600 W and 330 V. The resistance of the circuit is 20 Ohm. The…

Q: A direct current of 25A creates a flux of 1.4 X 10-4 Wb in a coil of 500 turns.  What is the…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Two coils of wire are placed next to each other. The current in the first coil increased from 0 to…

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