A generator produces 18.0 V when turning at 920 rev/min. What emf does it produce when turning at 520 rev/min? V

Q: A generator produces 21.0 V when turning at 870 rev/min. What emf does it produce when turning at…

A: emf induced = 21 V when the coild turns at 870 rev/min New angular speed = 510 rev/min Let the…

Q: At what velocity (in revolutions per minute) will the peak voltage of a generator be 490 V, if its…

A: Peak voltage , εpeak = 490 V Turns , N = 490  Diameter = 8 cm  Radius , R = 4 cm = 4 x 10-2 m…

Q: Calculate the peak voltage of a generator that rotates its 1000-turn, 0.100 m diameter coil at 5000…

A: Given that the value of magnetic field and given the number of turns and diameter of coil and speed…

Q: A simple ac generator consists of a coil with 10 turns (each turn has an area of 50 cm^2). The coil…

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Q: The resistances of the primary and secondary coils of a transformer are 56 and 14 V, respectively.…

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Q: A step-up transformer has Np = 46 turns on the primary coil and Ns = 669 turns on the secondary…

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Q: A motor has coils with a resistance of 26 and operates from a voltage of 237 V. When the motor is…

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Q: A student builds a step-down transformer with windings (in no particular order) of 40 and 120. If…

A: The given data are: Here, Np denotes the primary turns, Ns denotes the secondary turns, and Ip…

Q: 4. A 100KVA, 4000V/200V, 50HZ single-phase transformer has 100 secondary turns. Determine: i. The…

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Q: Magnitude and direction of an induced emf may be obtained by applying a. Faraday's law, b. Ampere's…

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Q: A generator uses 400 loops of area 0.0550 m^2, rotating in a 0.0639 T magnetic field. What angular…

A: Given, Number of loops (N) =400 Area of loop (A)= 0.0550 m2 Magnetic field (B)= 0.0639 T Maximum emf…

Q: How many turns is required for a coil with a diameter of 48 mm to induce 12 v of electricity when…

A: given that,Diameter, d=12 mm=0.12 memf reduced=12 V∆B=310 T∆t=0.2 secθ=18°

Q: A generator uses loops of area 0.239 m^2, rotating 373 rad/s in a 0.0639 T magnetic field. How many…

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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: A transformer has 1000 turns in the primary coil and 100 turns in the secondary coil. If the primary…

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Q: 1. A 30 KVA transformer has 300 turns on the primary and 50 turns on the secondary winding. The…

A: The given data in the question are P=30×103 VA turns on primary,  Np=300 turns on secondary, Ns=50…

Q: An electric power station that operates at 15 kV and uses a 20:1 step-up ideal transformer is…

A: The output voltage is,

Q: The maximum induced emf in a generator rotating at 210 rpmis 35 V. How fast must the rotor of the…

A: To determine the unknown rotational speed of the maximum emf . εmax,1=NBAω1 εmax,2=NBAω2 Solve the…

Q: A 120-V, series-wound motor has a field resistance of 80 Ω and an armature resistance of 10 Ω . When…

A: Given Data: The supplied emf is, ε=120 V The field resistance is, Rf=80 Ω The armature resistance…

Q: 4.30 2 3. In the circuit the emf e 19.5 volts and the inductance L 107 mH. What will be the energy…

A: Given: The emf of the battery is 19.5 V. The inductance of the inductor is 107 mH. The time interval…

Q: A 6 pole DC wave wound generator has 29 armature conductors with flux per pole is 24 mWb and the…

A: Given Data : The number of poles is given as P = 6. The number of armature conductors is given as Z…

Q: How much current would have to pass through a 10.0 mH inductor s would be enough to bring…

A: Hi please find solution to your problem  Formula used  E = 1/2 *L*I^2

Q: The primary of a transformer has 120 turns, while the secondary of the same transformer has 300…

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Q: A transformer steps 300 V down to 7.5 V to operate an arc welder that uses a current of 190 A. The…

A: Hello. As it is asked to solve the sub-part (a), we will solve the same for you.   The given values…

Q: the direction of rotation for the following AC generator S 4. right 5. clockwise 6. counterclockwise…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A transmission line that has a resistance per unit length of 4.00 x 10-4 a /m is to be used to…

A: ρ=4×10-4 ΩmP=5×106 WL=6.44×105 mV=4.5×103 VV'=550×103 V

Q: A 12 H inductor carries a current of 2.0 A.At what rate must the current be changed to produce a 60…

A: The induced emf in terms of inductance is

Q: A generator produces 18.0 V when turning at 920 rev/min. What emf does it produce when turning at…

A: Given data The emf produced by the generator E1 = 18 V at the frequency n1 = 920 rev/min. Another…

Q: A bicycle generator rotates at 1875 rad/s, producing an 18.0 V peak emf. It has a 1.00 by 3.00 cm…

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Q: A transformer has 600 turns on its secondary and 100 turns on its primary. The primary is connected…

A: Given data: Number of turns on primary coil is Np=100. Number of turns on secondary coil is Ns=600.…

Q: The illustration shows a step-up transformer. The primary coil has Np = 250 turns and the secondary…

A: Since you have asked multiple questions in a single request, we would be answering only the first…

Q: 6.43 The current in an 80-mH inductor increases from 0 to 60 mA. How much energy is stored in the…

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Q: Calculate the peak voltage of a generator that rotates its 100-turn, 0.100 m diameter coil at 3600…

A: Given data: Number of turns (N) = 100 Diameter (d) = 0.1 m Angular frequency = 3600 rpm Magnetic…

Q: If the peak value of a 60Hz generator is 160V, what is the instantaneous voltage after the loop has…

A: Given data The frequency of the generator is given as f = 60 Hz. The Peak value of the generator is…

Q: Q5: A power transmission line feeds input power at 2300 V to a step-down transformer with its…

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Q: How fast can the 155 A current through a 0.220 H inductor be shut off if the induced emf cannot…

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Q: A bicycle generator rotates at 1,800 rad/s, producing a 15.5 V peak emf. It has a 45-turn, 1.00 by…

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Q: A generator produces 24.0 V when turning at 900 rev/min. What emf does it produce when turning at…

A: The formula for the emf generated is given by  e = N B A w where, N is the number of turns, B is the…

Q: The current in the secondary coil of a step-up transformer is 0.86 A when the current in the primary…

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Voltage Across Inductor

An actor is a passive electrical component that consists of a coil bent in the form of wire which uses electromagnetism to produce electric current through the coil. When the electric current flows through a conductor that is the coil, a magnetic flux is developed around the conductor. This flow of current through the coil creates a magnetic field based on Fleming's Right-hand thumb rule. If there is any decrease in the current passing through the inductor, then the magnetic field will also decrease and energy is released through the generation of electric current. There is also a secondary voltage inducing in the same coil due to the magnetic flux, since it opposes any changes in the electric current flowing through the circuit. An inductor is also called choke, coil, or solenoid. A choke is designed to block certain frequencies when the DC current passes. A winding coil is coated with insulation to give extra insulation and protect the circuit. They are usually tightly wrapped around a central core which is cylindrical in nature so that the magnetic flux can be induced. The solenoid is a three-dimension coil that is used to exhibit electromagnetism when the magnetic field is developed due to the current flowing through the coil. The sign convention of the inductor is the same as the power dissipating device. When the current flows into the positive side of the voltage across the inductor, the value is positive and the inductor dissipates power whereas when the inductor releases the power back to the circuit, the current has a negative sign convention.