Suppose a large power plant generates electricity at 12.0 kV. Its old transformer once converted this voltage to 360 kV. The secondary coil of this transformer is being replaced so that its output can be 740 kV for more efficient cross-country transmission on upgraded transmission lines. If the overall power output is 1000.0 MW and line resistance is 2.00 Ω, what was the power loss, in watts, in the old power lines which left the plant?

Q: A transformer on a pole near a factory steps the voltage down from 3,600 V (rms) to 120 V (rms). The…

A: Primary voltage (vp) = 3600 V Secondary voltage (vs) = 120 V Power delivered to the factory (Ps) =…

Q: The 335-kV ac electricity from a power transmission line is fed into the primary winding of a…

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Q: A generator supplies (2.460x10^2) V to the primary coil of a transformer. The primary has 50 turns…

A: Given data :  Voltage in primary coil Vp = 2.460 × 102 V  Number of turns in primary coil Np = 50…

Q: nas ). The output voltage of the generator is 4.50 kV. (a) What is the line loss if a transformer is…

A: GivenResistance per unit length=4.3×10-4 ΩmPower Tansmitted, P=5 MW=5×106 WLength over which power…

Q: Suppose 1200 turns of copper wire are wrapped around one portion of an iron hoop, and 3000 turns of…

A: Given  N1=1200 turns  V1=15 V AC N2=3000 turn

Q: What is the voltage output (in V) of a transformer used for rechargeable flashlight batteries, if…

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Q: A step-down transformer has a turns ratio of 1:10, and its primary is connected across the terminals…

A: If a voltage 'V' is applied across a resistance 'R', then the power dissipation in that resistor is:…

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 60-Hz AC generator develops a peak voltage of 170-V. The generator is connected to a lightbulb…

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Q: A small town with a demand of 800 kW of electric power at 220 V is situated 15 km away from an…

A: a) Total resistance= On substituting Power loss=

Q: A device has an average power rating of 1250 W and is designed to operate using a 211 V (RMS) line.…

A: Given  average power rating of a device (Pavg)=1250 w rms voltage (Vrms)=211 volt Required…

Q: A motor has an armature resistance of 3.75 Ω.If it draws 8.20 AA when running at full speed and…

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Q: Problem 8: Suppose a large power plant generates electricity at 12.0 kV. Its old transformer once…

A: Part (a)Find the relation between current, power and voltage.

Q: A transmission line that has a resistance per unit length of 4.30 x 104 n /m is to be used to…

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Q: A certain generator has armature resistance 0.080 ohms and develops an induced EMF of 440 V when…

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Q: A large power plant generates electricity at 12.0 kV. Its old transformer once converted the voltage…

A: Given Data:Voltage used to generate electricity Voltage gain by the old transformer Voltage gain by…

Q: A circuit consists of a large electromagnet that has an inductance of 48.0 H and a resistance of…

A: Inductance (L) = 48 H Resistance (R) = 7.9 ohm Vb = 250 V Maximum current (Im) = VbR= 2507.9= 31.645…

Q: Consider a 23 mH inductor that has a resistance of 4.15 Ω. Time constant is 0.00554. If the…

A: Given that  L=23 mH R=4.15Ω Time constant τ=0.00554 s

Q: A transformer is to be used to provide power for a computer disk drive that needs 5.0 V (rms)…

A: Given that the value of primary and secondary voltage and secondary Current. Then We have to…

Q: A step-down transformer has 600 V across the primary coil and 120 V across the secondary. The…

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Q: A transformer is to be designed to increase the 30-kV (rms) output of a generator to the…

A: Input voltage, V1 = 30 kVOutput voltage, V2 = 345 kVNumber of turns in primary coil, N1 = 80 Number…

Q: 220 V is supplied across 1200 windings of the autotransformer. If 1650 primary coil of the windings…

A: We have following given values-Voltage, V= 220 VoltPrimary Windings, N1= 1200Secondary Windings, N2=…

Q: A transformer has 400 turns on its secondary and 100 turns on its primary. The primary is connected…

A: Given: The number of turns in primary coil is N1=100 The number of turns in secondary coil is…

Q: The primary coil of an ideal transformer provides 2000 V at 0.01 A. The secondary coil operates on…

A: Transformer are the electrical device which is used for change the input voltage. It  is based on…

Q: The mutual flux in the core of a 47.9 - cycle transformer that has 800 primary turns and 190…

A: Solution: Given data, Primary turns N1 =800 Secondary turns N2 =190 Mutual flux = 2.17 × 10-6…

Q: 12. A 600 kVA, 2000/200V  transformer has a primary winding resistance of 0.6Ω and a secondary…

A: Given- Power = 600 KA Primary voltage V1=2000 V Secondary voltage V2=200 V Primary winding…

Q: 67 turns in its primary coil and 13 turns in its secondary coil. The primary coil is connected to…

A: Given:Number of turns in the primary coil, Np=67Number of turns in the  secondary coil, Ns=13Voltage…

Q: A circuit consists of a large electromagnet that has an inductance of 48.0 H and a resistance of…

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Q: A certain transformer has exactly 119 turns on its primary side and exactly 199 turns on its…

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Q: A solenoid with 35 x 103 turns per meter, a cross sectional radius of 0.6 m, and a length of 0.2…

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Q: A transformer is to be used to provide power for a computer disk drive that needs 7.0 V (rms)…

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Q: An array of solar panels produces 8.65 A of direct current at a potential difference of 148 V. The…

A: Given: A solar panel produces a current of 8.65 A at a potential difference of 148 V.  The…

Q: A transformer has an efficiency of 80%. It works at 4 kW and 100 V. If the secondary voltage is 240…

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Q: Consider a transformer in which the primary has 400.0 turns and the secondary 50.0. Given an input…

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Q: A transmission line that has a resistance per unit length of 4.20 ✕ 10-4 Ω /m is to be used to…

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Q: Energy is distributed to households from electrical substations as an ac signal…

A: Number of turns of secondary coil, Ns= 190 Input or source ac signal,…

Q: A 140 V emf is across a transformer's 190-turn primary coil.  How many turns should the secondary…

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