A transformer is connected to a 120 V input voltage. There are 228 turns of wire on the input coil. The output voltage is 6000 V. How many turns of wire are there on the output coil?

Q: A transformer has 240 windings in its primary coil and 50 in its secondary coil. If the secondary…

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Q: A book light has a 1.4 W, 4.8 V bulb that is powered by a transformer connected to a 120 V electric…

A: The condition for AC transformer is, IsIp=VpVs=NpNs The number of turns of secondary coil is…

Q: The primary of a certain transformer has 2.7 turns per volt of applied voltage. How many turns must…

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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 subwoofer needs a household voltage of 110 V to push a current of 5.5 A through its coil. What is…

A: Given  Voltage V=110 V Current I=5.5 A

Q: A transformer is designed to step down the 220 V. line voltage to 31 V. If there are 1115 turns on…

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Q: A 1520-W hair dryer plugs into a 120-V outlet. What is the current through the hair dryer when it…

A: Power of hair dryer (P) = 1520 W Voltage (V) = 120 volts

Q: A transformer with a 120 V input voltage has 2000 turns of wire on the input coil and 197 turns of…

A: The expression for the output voltage is,

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: A 22-ohm resistor is in series with a 12-V motor that is drawing 150 Ampare of current. How much is…

A: Solution: Given that R =22 ohm voltage of  motor = 12 V I = 150 Amp

Q: A transformer has exactly 600 turns on its primary and exactly 200 turns on its secondary. if a…

A: It is given that, np=600ns=200Vp=100 VIp=0.250 A

Q: How much power is used by a contact lens heating unit that draws 0.04 A of current from a 194 V…

A: Given data:  Current (I) = 0.04 A Voltage (V) = 194 V Required: Power (P)

Q: Calculate the voltage output by the secondary winding of a transformer if the primary voltage is 230…

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Q: A transformer is used to step down the 120 V AC power in an outlet to 5.00 V for a radio. If the…

A: We have N1N2=V1V2

Q: A pair of power transmission lines each have 2.40-Ω resistance and carry 750 Amp. If the primary…

A: Given Data: Ns = 10 Np = 1 Vp = 2 kV

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

A: Voltage , V  = 220 V  Windings , N1 = 1200  Windings , N2 = 1650  To find = voltage

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 for a household appliance changes the voltage from a 120-Volt outlet to the 20.5 Volts…

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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: Immediately after the switch closes, the current in the circuit is 1 ΜΩ + 45 V 3 µF

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Q: A 63 kVA transformer supplies a current of 50 A at a voltage of?

A: Formula of Power is given by ,                 P = VI Rearranging for V (voltage)                  V…

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: If the coils of a heater have a resistance of 12 ohm, how much current does it draw when plugged…

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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: A step-down transformer is to be used to convert an ac voltage of 120 V to 5 V to power an electric…

A: Given, a step down transformer.voltage across the primary coil =120 Vvoltage across the secondary…

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: Question 17 The primary coil of a transformer has 100 loops and is connected to a circuit with 120…

A: Concept

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: What is the power rating of a television set which draws a current of 2 A from a 220-volt outlet?

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Q: If the unit cost of electricity in Luzon is PhP 8.9951 per kWh, what is the total cost (capital plus…

A: Given data: Cost of electricity = PhP 8.9951 per kWh Power (P) = 28 W Time (t) = 1000 h Capital cost…

Q: What is the current flowing in the coil when the applied voltage in a motor resistance of 3.4Ω is…

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Q: A transformer is to be used to step up voltage from an alternating current source from 120 V to 1800…

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Q: please answer the following The generator at a power plant produces AC at 30,000 V. A transformer…

A: The voltage i transformer is directly proportional to the number of turns. Mathematically this is…

Q: When the switch is closed, the reading on the ammeter is = Amperes and Voltage = Volt

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Q: An electric clothes dryer is rated at 3,400 W. How much energy does it use in 30 min?

A: power of electric cloth dryer (P) = 3400 W time (t) = 30 min

Q: When connected to a 120-volt power supply, how much current exists in a light bulb that has a…

A: Write the expression for Ohm’s law. Here, V represents the voltage and R represents the resistance.

Q: What is the yearly cost of operating a 100-W television for 2 hours per day, assuming the cost of…

A: Given data: Power (P) = 100 W Daily uses = 2 hours per days Cost of electricity = Php 11.00 per kWh…

Q: A transformer with more windings on the primary coil than on the secondary coil...

A: Given, A transformer which has more winding turn in primary than secondary.

Q: The primary coil of a transformer has 480 turns, and the secondary has 112 turns. How much AC…

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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: What is the inductance of a coil of wire that generates a voltage of 1 V when the rate of change in…

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Q: In the US, the conventional voltage seen in a receptacle( wall outlet) is 120 V. How many amperes is…

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Q: A step-up transformer is designed to produce 1840 V from a 112-V ac source. If there are 384 turns…

A: In an ideal transformer  VPVS=NpNs 1121840=Np384

Q: An electric clothes dryer is rated at 2,900 W. How much energy does it use in 20 min?

A: E=Pt

Q: A transformer consists of a 781-turn primary coil and a 6809-turn secondary coil. If the current in…

A: Find the primary current flows in the transformer. N1N2=I2I1N2N1=I1I2I1=I2N2N1I1=2.78 A6809781=24.2…

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