4. Calculate the inducatnce of a coil if the induced emf is -2 V when the current is increased from 0 to 6 A in 0.8 s.

Q: A car generator turns at 480 rpm when the engine is idling. Its 240–turn, 4.40 by 8.00 cm…

A: Given the coil turns 480 rpm. The angular frequency of the coil ω=480…

Q: When the number of loops of wire in a coil is doubled, assuming all the other factors stay constant,…

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Q: 4. The phase relationship of the voltage and current of an inductor is a. current lags the voltage…

A: We know that, In resistor current and voltage are in sane phase In capacitor current leads voltage…

Q: You have a transformer with a primary current of Ip = 15 A and a primary voltage of Vp = 2050 V. The…

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Q: You have four metal bars. When bar 1 is placed in a line with each of the other three bars, the…

A: Bar 1 attracts all other bars but when the 4th bar is flipped, bar 1 and bar 4 repels each other.…

Q: 18. The power supply drives the primary coil at 9.9 MHz. If thi frequency is doubled, how must the…

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Q: 1. What is the inductance of a coil if the coil produces an emf of 2.90 V when the current in it…

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Q: The inductance of a closely packed coil of 500 turns is 11 mH. Calculate the magnetic flux through…

A: Magnetic flux.

Q: For Transformer winding1 N131000 turns, N2= 200 turns and V1=220 Volts, secondary resistance of 22…

A: Solution:-Given thatFor Primary windings;N1=1000 turnsN2=200 turnsV1=220 voltsFor Secondary…

Q: 4. A circular coil has 275 turns and a radius of 0.045 m. The coil is used as an ac generator by…

A: Solution:-Given thatN=275 turnsR=0.045 mB=0.5 TMaximum emf (emax)=175 V

Q: Two coils are placed close together in a physics lab to demonstrate Faraday's law of induction. A…

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Q: 25. What is the output potential dif- ference from the secondary coil of the transformer on the…

A: The potential difference around the coil is directly proportional to the no of turns. And so the…

Q: 5. The diagram below shows a transformer with N₂ = 110 turns in the primary and N, = 40 turns in the…

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Q: How fast can the 145 A current through a 0.240 H inductor be shut off if the induced emf cannot…

A: Given: Current is I=145 A Inductance of inductor is L=0.240 H Induced emf is emf=73 V Find: Time…

Q: A transformer consists of two coils of wire wound on a common toroidal iron core. The mutual…

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Q: 6. A 120 turn coil of radius 1.8 cm and resistance 5.3 ohms is coaxial with a solenoid of 220…

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Q: 2. An AC generator has 80 rectangular loops on its armature. Each loop is 14 cm long and 9 cm wide.…

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

A: Given that,Resistance of coil, R= 2.25ΩInductance of coil, L= 121 mH=121×10-3 HCurrent across the…

Q: A car generator turns at 480 rpm when the engine is idling. Its 240–turn, 4.40 by 8.00 cm…

A: Number of turns (n) = 240 Area of rectangular coil (A) = 0.044×0.08 m2= 0.00352 m2angular velocity…

Q: An emf of 24.0 mV is induced in a 500 turn coil at an instant when the current is 4.0 A and is…

A: The expression for find magnitude of Lis L=-εdIdt Substitute values in the above equation…

Q: 2. An inductance of 1 henry and a resistance of 1 ohm are connected in series with a constant e.m.f.…

A: Given: L=1HR =1ohmat t=0 , i=0and at t=5sec , i =10 A

Q: Two coils close to each other have a mutual inductance of 32 mH. If the current in one coildecays…

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Q: An object moves on xy plane according to the equationi = 20 cos(3t) î + (1,5t + 3,5t2)j. Determine…

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