The generator at a power plant produces AC at 22,000 V. A transformer steps this up to 355,000 V for transmission over power lines. If there are 1,950 turns of wire in the input coil of the transformer, how many turns must there be in the output coil?

Q: An electric water heater uses 13 amperes of current when plugged into a 110-volt outlet. How much…

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Q: A transformer is designed to step down the 220 V. line voltage to 49 V. If there are 1,196 turns on…

A: The voltage on the input coil of transformer is V1 = 220 V. The voltage on the output coil of the…

Q: The primary coil of a transformer with 954 turns carries an EMF of 2.2. If the secondary coil has…

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Q: A furnace for an electric heating system is rated at 121 amperes and 27,500watts. What is the…

A: Given: The current is 121 A. The power is 27500 W.

Q: a transformer has a primary coil with 5000 windings and a secondary coul with 100,000 windings. if…

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Q: An electric clothes dryer is rated at 2,200 W. How much energy does it use in 45 min?

A: Write the formula for power.

Q: If a circuit has a resistance of 20 ohms and a current of 18 A, what is the voltage ?

A: The answer is below

Q: The charger cord used to recharge a cell phone contains a transformer that reduces 120 V AC to 4 V…

A: Given data The input voltage to the transformer is: V1  = 120 V The output voltage to the…

Q: Three 20-Ohm light bulbs are wired in parallel. If they are connected to a 10 V potential…

A: Resistance, R = 20 Ω (three in parallel)  Voltage, V = 10 V  Current, I = ?

Q: How much heat will be released in the winding of an electric motor in 25 minutes if its active…

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Q: If a blender is plugged into a 110 V outlet that supplies 2.7 A of current, what amount of power is…

A: Given data:  Voltage (V) = 110 V Current (I) = 2.7 A Required: Power (P)

Q: A transformer has a primary with 4000 windings and a secondary coil with 78,000 windings. If the…

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Q: What is the power rating of a heating coil with a resistance of 12 ohms that draws a current of 20…

A: Given that the value of resistance and current then we have to determine the power rating of the…

Q: The generator at a power plant produces AC at 21,000 V. A transformer steps this up to 375,000 V for…

A: The operation of transformer relies on the principle of electromagnetic induction. By wrapping wire…

Q: The transformer on a model train set steps down the voltage from 120 Volts to 9.0 Volts. If the…

A: Voltage of primary coil , Vp = 120 V Voltage of secondary coil , Vs = 9 V Number of turns on…

Q: If a toaster produces 12 ohms of resistance in a 120-volt circuit, what is the amount of current in…

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Q: The primary coil of a transformer has 130 turns. The secondary coil has 520 turns. If the secondary…

A: Given: The primary turn of the transformer is 130. The secondary turn of the transformer is 520. The…

Q: A transformer with primary 712 windings and 5,275 secondary windings has an input voltage of 101 AC.…

A: Np=712Ns=5275Vp=101 AC

Q: A transformer is designed to step down the 220 V. line voltage to 47 V. If there are 1,711 tums on…

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Q: charger cord used to recharge a cell phone contains a transformer that reduces 120 V AC to 5 V AC.…

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Q: what will be the voltage in the secondary winding of a transformer if the turns ratio is 4:8 and the…

A: Np : Ns = 4 : 8 Vp = 20 V Vs = ?

Q: A transformer with primary 998 windings and 6,765 secondary windings has an input voltage of 123 AC.…

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Q: a transformer has 40 turns in its primary coil and 600 turns in its secondary coil. if the primary…

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Q: A transformer with primary 510 windings and 5,825 secondary windings has an input voltage of 137 AC.…

A: Given data: Number of primary windings, Np=510 Number of secondary windings, Ns=5825 Input voltage,…

Q: A transformer is designed to step down the 220 V. line voltage to 8 V. If there are 1.753 turns on…

A: Primary Voltage, Vp=220 V  Secondary Voltage, Vs=8 V Input coil turns, Np=1.753 Let Ns be the no of…

Q: A transformer has 440 turns in the primary coil, which provides 1280 V at 8.4 A.   If the secondary…

A: Given: The turns in primary coil (Np) = 440. The voltage across primary coil (Vp) = 1280 V. The…

Q: A transformer with 915 primary windings and 7,780 secondary windings has an input voltage of 155 AC.…

A: Data Given ,  No. Of primary windings ( Np ) =915 No. Of secondary windings ( Ns ) = 7780  Input…

Q: A transformer is designed to step down the 220 V. Line voltage to 39 If there are 1,976 turns on the…

A: A transformer is an electrical device which transform or convert one voltage level to another. It…

Q: A transformer has 40 turns in its primary coil and 600 turns in its secondary coil. If the primary…

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Q: A transformer is designed to step down the 220 V. line voltage to 21 V. If there are 1,514 turns on…

A: The input voltage Vi= 220 V The number of turns in input windings Ni=1514 turns The output voltage…

Q: An electric clothes dryer is rated at 2,600 W. How much energy does it use in 20 min? (Answer in…

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Q: How much charge is represented by 4,600 electrons?

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Q: A transformer has a voltage input of 120 V and an output of 1500 V. If the primary coil has 200…

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Q: A transformer has 130,000 turns in its primary coil and is connected to an ac power supply of 48.0V.…

A: Vp = 48 VNp = 130,000Ns = 4000Rs = 150 Ωtransformation ratio:VpVs = NpNs = IsIp

Q: What is the power dissipated in a circuit if there is 3.0 N of resistance and there is 5.0 A of…

A: Answer             C) 75W solution We know that The power dissipated in the circuit is P= I2R Here I…

Q: A transformer has a primary coil with 5000 windings and a secondary coil with 100,000 windings. If…

A: The output voltage, NpNs=VpVsVs=VpNsNp

Q: A transformer is designed to step down the 220 V. line voltage to 8 V. If there are 1,753 turns on…

A:

Q: A transformer has a primary coil with 6000 windings and a secondary coil with 120,000 windings.  If…

A: Given value--- Number of turns in primary coil = 6000. Number of turns in secondary coil = 12000 .…

Q: The charger cord used to recharge a cell phone contains a transformer that reduces 120 V AC to 5 V…

A:

Q: A voltage of 220 volts enters a transformer with 150 turns of coil on the primary side. If an…

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Q: The voltage across a circuit is 120 V. If the 10-ohm resistor in the circuit is replaced with a…

A: Given: The supply voltage is 120 V. The itnial resistance of the circuit is 10 Ohm. The final…

Q: A transformer is designed to step down the 220 V. line voltage to 17 V. If there are 1,551 turns on…

A: Given: The input voltage is Vi = 220 V. Voltage in the output coil is Vo = 17 V. The number of turns…

Q: A heating element in a stove is designed to receive 3,345 W when connected to 240 V.  Calculate the…

A: The resistance of the device is,

Q: The charger cord used to recharge a cell phone contains a transformer that reduces l20 V AC to 5…

A: VpVs=NpNsNs=VsVpNp

Q: A transformer is designed to step down the 220 V. line voltage to 16 V. If there are 1,067 turns on…

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Q: A transformer is designed to take an input voltage of 120V AC and output it to 9 V AC. If there are…

A: Solution,

Q: How much current does a 1500 Watt heater draw if supplied with a 120 Volt source?

A: Given Data: Power, P = 1500 W Voltage, V = 120 V   Solution: Current, I = P/V = 1500 / 120 = 12.5 A

Q: The generator at a power plant produces AC at 23,000 V. A transformer steps this up to 365,000 V for…

A: