An electric clothes dryer is connected to a 100-volt source. How much current does it use if it requires 2,000 watts of electric power?

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

A:

Q: What current will be taken by a 920 W appliance if the supply voltage is 230 V ?

A: Given data :                       Power  =  P                     Voltage  =  V          To find :…

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

A:

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: How much power is used by a 10 V flashlight battery that draws 1.5 A of current?

A:

Q: What current flows through a hair dryer plugged into a 120 Volt circuit if it has a resistance of 25…

A: given that  voltage = 120 volt resistance = 25 ohms according to ohms law  V= IR

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: An electric toaster operating on 120 volts draws a current of 7 amperes. The resistance of the…

A:

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

A:

Q: If 0.5 amps of current are measured in a circuit with a light bulb connected to a 120 volts outlet,…

A: V=I*R V=120 Volts I=0.5 amps   R=V/I=120/0.5=240 Ohm

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: What is the current (in amperes) drawn by an 840 W toaster attached to a 120 V outlet?

A: Given that            The power of the toaster is (P) = 840W            The voltage (V) = 120V We…

Q: What is the Voltage needed to have 10 amps of current pass through a 4 ohm resistor?

A: Required : Voltage required.

Q: How much current is “drawn” by a 75 W lightbulb connected to a 120 V outlet?

A:

Q: a 100 watt lightbulb is connected to a light socket with a draw of 0.455A.  solve for the voltage of…

A: The equation for the voltage of the light socket is

Q: If 25,000 A of current is used to carry out electrolysis for 15 minutes, what voltage would be…

A:

Q: How much does it cost to light a 300-W lightbulb for 30 days if the cost of electricity is 7¢/kWh?

A:

Q: An electric generator produces 200 kW of power and delivers the electricity at 6,500-V. How much…

A: Power is the product of current and voltage.  Calculate the current corresponding to both the…

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

A:

Q: What current will be taken by a 850 W appliance if the supply voltage is 220 V ?

A: Given data :                     Power   =   P                     Voltage  =  V         To find :…

Q: How much current is drawn from a circuit that has a resistor of 100 ohms if powered by a battery…

A: The voltage in a resistance circuit is given by V = iR, where V = the voltage i = the current in 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: If a simple circuit is connected in series with one 4-Volt battery and one 8-ohm resistor, what is…

A: According to ohm law V = I*R Here V= Voltage(volt) I= Current(Ampere) R=Resistance(ohm)

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: How much power does a 9.0-volt Circuit use that has a 1.0-amp current flowing through it?

A: (given) Voltage (V) = 9 V  Current (I) = 1.0 A Power is  P=Work time   =WtAndP=(Voltage)×(Current)…

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

A:

Q: There is a current of 0.73 Amps through a light bulb in a 120 Volt circuit. What is the resistance…

A:

Q: What resistance would produce a current of 200 amperes with a potential difference of 2,000 volts

A:

Q: What current will be taken by a 1100 W appliance if the supply voltage is 260 V ?

A: Given data :                   Power  =  P                 Voltage  =  V      To find :…

Q: How many milliamperes of current flow through a circuit with a 40 V source and 6.8 kΩ of resistance?

A:

Q: How many cells, each one having an open circuit emf of 4.5 V and an internal resistance of 0.5 ohms,…

A:

Q: If a wire 1,625 feet long has a resistance of 0.85 ohm, what is the resistance to the nearest tenth…

A:

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

A:

Q: What is the current in a circuit with a 120 V voltage supply and 500 Ohms of resistance ?

A: According to ohm's law Current in circuit, I = V/R    I = 120/500 I = 0.24 A

Q: The current in a 120-V reading lamp is 2.6 A. If the cost of electrical energy is $0.075 per…

A: Given data The potential difference across the lamp is Vo=120 V The current in the lamp is Io=2.6 A…

Q: What is the resistance of a bulb if the current in it is 1.25 A when a 4 V voltage supply is…

A: It is given that, I=1.25 AV=4 V The resistance in bulb, using ohm's law is, V=IRR=VI=41.25=3.2 Ω

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: What is the average power consumption in watts of an appliance that uses 0.75 kWh of energy in one…

A:

Q: How many calories per second are generated in an electric heater that has a resistance of 20 ohms…

A: formula used:

Q: A clothes washer used 3.2 kilowatt for 0.9 hour. If electricity costs $0.31 per kilowatt- hour, how…

A: Given data:  Power (P) = 3.2 kW Time (t) = 0.9 h Electricity cost = $0.31 /kWh Required: The total…

Q: An electrical appliance use 99 V and its resistance is 7,418 Q. How many electrons pass through the…

A:

Q: A light bulb is plugged into a 120-Volt outlet and has a 0.6 A current in it. What is the power…

A: Potential of the outlet = 120 volts Current (I) = 0.6 A

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,