A 1.2 kW electric heater is operating with 225 V and it is running for 2.5 hours. Calculate the resistance and energy consumed by the heater in kWh. Resistance, R = Energy Consumed, W =

Q: 2- A heater takes a current of 8 A from a 230 V source for 12 h. Calculate the energy consumed in…

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Q: A 60 W electric light bulb is connected to a 240 V supply. Determine (a.) the current flowing in the…

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Q: An electric heater consumes 1.8 MJ when un connected to a 250 V Supply for 30 minutes. Find the…

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Q: Calculate the current through the 25 ohm resistor and the supply voltage V

A: Given circuit,

Q: Question 3: At $0.08 per kilowatt-hour, it costs $1.20 to run a heater for 50 hours from a 20-V…

A: First we need to find the power to calculate the current.

Q: a. If a voltage of 15 +5% Vdc is measured across the 5+10% N resistor, at what rate is the energy…

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Q: A consumer has the following connected load: 10 lamps of 60W each and two heaters of 1000W each. His…

A: Energy consumption means amount of energy / power used. we divide our energy in various sector like…

Q: The current through a resistance is observed to be 117.3 Amp when 34.2 volt is applied across it.…

A: Given that  V1=34.20I1=117.30V2=37.1 Volt According to ohm's law resistance of given resistor is…

Q: A 1500 W portable heater will use 1.5 kW per hour. In 4 hours, it would use _______ Horsepower

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Q: Using a 195V power supply, calculate the current in a 5500 ohm resistor

A: According to the question have to calculate the value of current.

Q: 4. Electrical equipment in an office takes a current of 13A from a 240V supply. Estimate the cost…

A: In this question we will find electricity cost...

Q: An electric heater consumes 3.6 MJ when connected to a 250V supply for 40 minutes. Find the power…

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Q: 50 12 V

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Q: A heater draws 4 A from a 110 V source. What is the resistance of the heating element? [1]

A: Given: Current drawn I=4 A Source V=110 V

Q: What is the power rating (in kW) of a device which has a resistance of 150 ohms and draws 6Amps of…

A: Given: Resistance R = 150 ohms             Current I = 6A We need to determine power rating of…

Q: A– what is the cost of 200W oil-burner motor running 600 min a week for 7 months at 9¢ per…

A: As per Bartleby guidelines we are allowed to solve only one question,please ask the rest again.The…

Q: An electric heater draws 10 A from a 120 V-line . the resistance of the heater is

A: Given  I =10 A V=120v By ohm's law   V=IR

Q: You have an old desk lamp which you use for studying. You decide to replace the old filament globe…

A: Given, x=80 W y=6 W z=2 h electricity cost=R2kWh

Q: An electric heater maked with 250V, 3KW. Evaluate the resistance and monthly cost of electricity…

A: The information is provided as:

Q: 3- If an electric heater draws 9.5 A when connected to a 120 V supply, what is the internal…

A: Given, Current drawn by heater I=9.5 A Supply voltage V=120 V

Q: 3. A 2.8-kW electric heater takes 20 min to boil a quantity of water. If this is done once a day and…

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Q: 22. What is the current in the battery of the circuit shown below? (What must you find before you…

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Q: A heater with a resistance of 17Ω and a rating of 92W should be supplied by a source voltage…

A: Given: Resistance, R=17 Ω The power rating of the heater, P=92 W

Q: If a DVD player draws 2 A current from a 23 V DC source, then what will be the resistance of the DVD…

A: According to Ohm’s law if i is the current flowing through a component and thus creating a voltage…

Q: A 1450 W radiant heater is constructed to operate at 115 V. What is the current in the heater when…

A: Given: Heater power rating, P=1450 W Operating voltage is V=110 V

Q: 2. A 1.8 kW electric heater is connected to a 199 V source. (a) How much current (in ampere) does…

A: given values, power = 1.8kW or 1800W voltage= 199V   (a) we know, power=VI watts…

Q: m². The solar irradiation is 700 W/m2. If the efficiency of this solar plant is 8 percent, w is the…

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Q: A heater uses 20 A when connected to a 220-V line. If electric power costs 10 centavos per…

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Q: If a 100-Ω resistor is connected across the terminals of a 12-V battery, how much is the current, I?

A: To find the value of current in resistor with the value of resistance 100Ω and a voltage of 12V…

Q: Motor Suppose the voltmeter in the circuit shows 20 V, and the conductance of the motor is 25 mS.…

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Q: Which is the power in the 20-ohm resistor? choices: 100W, 20W, 40w, 80w

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Q: An electric heater consumes 1.8Mj when connected to a 250 V supply for 30 minutes. Find the power…

A: Given: Energy consumed by electrical heater is E=1.8 MJ Supply V=250 V Time t=30 minutes=1800 s

Q: Find the voltage drop across a toaster that gives off 7500 Joules heat when a 13.64 Amps current…

A: Given: A toaster gives off heat H=7500 J. Current through toaster is I=13.64 A. Time t=5 s.

Q: A current of 1A passes through a 0.12 kQ resistor. What is the voltage across the system in Volts?…

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Q: 25 If voltmeter is used to measure the voltage, which of the following device is used to measure…

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Q: Find the power in watts delivered to the resistor when it is set at 500 ohms.

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Q: 5. An electric heater consumes 3.6 MJ when connected to a 250V supply for 40 minutes. Find the power…

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Q: d) How much energy in kWh is required to light a 60W bulb continuously for 1 year (365 days)? What…

A: We need to calculate kWh for given time duration and wattage .

Q: Calculate the current across the 20 ohm resistor. 20 otm www 30 ohm 200V

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Q: In a day, a household consumes 30W Light for 10 hours usage and 70W from appliances for 4 hours…

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Q: How long in minutes, will it take a 2kW, 230-volt electric heater to raise the temperature of 2.5kg…

A: Power of heater=2kw                                        mass of water   =2.5kg…

Q: How long can a 1.5 V flashlight battery provide a current of 250 mA to light the bulb if the…

A: Given that, Voltage V= 1.5 VCurrent I =250 mA = 0.250 A Ampere-hour rating =16 Ah   We have to find…

Q: How much is the output voltage of a power supply if it supplies 75 W of power while delivering a…

A: The mathematical expression of power supplied to the load isThe mathematical expression of output…

Q: 4. A heater draws 1.1 kilowatts at 220 volts. a. Find the resistance of the heater b. Calculate the…

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Q: Ql:-A - what is the cost of using 200 W oil-burner motor running 600 min a week for 7 months at 9¢…

A: As per our policy, i am attempting first question. Given data, P=200 W

Q: The current in a 960 W, 240 V heater operated at 200 V is ?

A: Consider the formula for resistance is, P=V2R Solve for the resistance as, 960 W=240 V2RR=240 V2960…

Q: Calculate the power supplied by the source as well as the voltage across the resistor of 20Ω.

A: The potential difference between the resistor's nodes is referred to as voltage across the resistor.…

Q: A certain appliance uses 350 W. If it is allowed to run continuously for 24 days, how many…

A: In this question,  We need to choose the correct options Given data :- Alliance uses Power P= 350W…

Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.