A transmission line that has a resistance per unit length of 4.50 × 10−4 V/m is to be used to transmit 5.00 MW over 400 miles (6.44 × 105 m). The output voltage of the generator is 4.50 kV (rms). (a) What is the line loss if a transformer is used to step up the voltage to 500 kV (rms)? (b) What fraction of the input power is lost to the line under these circumstances? (c) What difficulties would be encountered on attempting to transmit the 5.00 MW at the generator voltage of 4.50 kV (rms)?

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) =…

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A: here we use power = Vrms x Irms P = VI = constant

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A: We know that Secondary voltage, V2 =13000V Primary voltage, V1 =120 V Number of turns in the primary…

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A:

Q: A step-up transformer connected to a 110-V line is used to supply a hydrogen-gas discharge tube with…

A: Given: Vp=110 VVs=5.0 kV =5*103 VPout=70 W

Q: R, AV, N RL. 00

A:

Q: A step-up transformer connected to a 110-V line is used to supply a hydrogen-gas discharge tube with…

A: a) The ratio of the number of turns in the secondary winding to the number of turns in the primary…

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A:

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A: Given Primary coil - 70 turns Secondry coil - 14 turns Voltage ratio - 14/70 = 0.2

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.

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A:

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A: N2N1=112Voltage in primary coil =120Vrms current drawn = 22.5 mA

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A: Solution: Given: 1 A = 1000 mA V1 = RMS voltage across primary coil = 220 V V2 = RMS voltage across…

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A:

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A: In no power loss condition, Pout = Pin Pout = output power, Pin = input power P0ut = Vs *Is here, Vs…

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Q: A step-down transformer is used for recharging the batteries of portable electronic devices. The…

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Q: The primary winding of an ideal transformer is wound with 550 turns and is connected to a 220V rms…

A: Number of turns in primary Np=550 Voltage in primary coilVp=220 V Voltage in secondary coil Vs=20 V…

Q: An ac source of emf delivers 5.0 mW of power at an rms current of 2.0 mA when it is connected to the…

A: Power, P = 5 mW  primary current, Ip = 2 mA secondary voltage, Vs = 20 V

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A:

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

Q: The primary winding of a transformer has 261 turns, and the secondary has 30.1.  If the input…

A: NP=261NS=30VP=256 VVS=?

Q: What rms voltage (in V) is measured across the secondary coil?

A:

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

A:

Q: A person is working near the secondary of a transformer, as shown in the figure below. The primary…

A:

Q: A step-down transformer is used for recharging the batteries of portable electronic devices. The…

A: All parts of the given questions have been explained in detail. If any doubt please feel free to…