If an iron takes 660KJ of energy from the mains supply after being left on for 10 minutes, what is the power rating of the iron? a) In Watts b) In kW
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A: Given that:- Current, I=12.5 A Potential V=150 V Power is given as: P=VI Equation…
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Q: 5. A person used his 1500 W air-conditioning unit for 6 h every day during the month of July. a. How…
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Q: A certain brand of hotdog cooker works by applying a potential difference of 137 V across opposite…
A: Given : potential difference = 137 V Current I= 10.9A Energy required to cook 1 hotdog = 61.0…
Q: A certain brand of hotdog cooker works by applying a potential difference of 147 V across opposite…
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Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…
A: Given, P= 30 W V= 120 V t= 2.1min = 2.1*60= 126 sec
Q: Q4. In the figure R = 2 kn, how much current flows through the 12 V battery? a) 2 mA b) 3 mA 4 mA 6…
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Q: A resistor gains 3 Joules of heat in 30 seconds when a current is sent through it. What is the…
A: Given data: Gain in Heat Energy (ΔE) = 3 J Time interval (Δt) = 30 s Required: The average power…
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Q: A cook plugs a 400 W crockpot and a 1000 W kettle into a 240 V power supply, all operating on…
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Q: Figure 6 below shows an RC- circuit where the capacitor Is initially uncharged. 100n 502 12 V 1502…
A: observe the given figure.In first case, the capacitor will behave like a short circuit.a) I =VR I…
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A: Given Find the output voltage in the circuit, as following below.
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A: Equivalent emf, when two cells are in parallel Emf = E1×r2 + E2 × r1/(r2 + r1) And the equivalent…
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Q: A 7.9µF Capacitor with an intial stored energy of 0.585 J is discharged through a 1.28 MN resistor,…
A: Given Data : The capacitance of the capacitor is given as C=9μF The initial energy stored in the…
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Q: What is the useful energy output when a 60 W light bulb is on for 2 hours? Recall, traditional light…
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Q: A water jet consumes 3950W for 126 hours a week What is the energy consumed (kWh) for a one-year…
A: Given Power consumed by water jet =3950 W =3.950 kWh Used for 126 hours a week.
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A: Given Power P = 420 W Voltage V = 120 V
Q: Hot Water Heater Due this Friday, Nov 18 at 11:59 pm (EST) A family comes home from a long vacation…
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Q: A 36 Ω component is connected to a 12 V battery. How much energy is expended per second? W
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Q: A certain brand of hotdog cooker works by applying a potential difference of 133 V across opposite…
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Q: A typical cost for electric power is $ 0.135 per kilowatt-hour. (a) Some people leave their porch…
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Q: A 2.5 kW heater element from a dryer has a length of 59 cm. If a 12 cm section is removed, what…
A: Given values:Power of heater element, P = 2.5 KwInitial length of dryer, Li = 59 cm = 0.59 mFinal…
Q: A wire has a resistance of 3.1 ΩΩ at 30 Co and a resistance of 4.52 ΩΩ at 100 C°. The temperature…
A: Given data: Resistance, R=3.1 Ω at temperature T=300C Resistance, R'=4.52 Ω at temperature T'=1000C
Q: The heating element in an iron has a resistance 360. The iron is plugged into a 120-V outlet. What…
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Q: You are given a number of 16 Ω resistors, each capable of dissipating only 2.0 W without being…
A: In this question we are given with a number of 16 Ω resistors, each capable of dissipating only 2.0…
Q: A 165 W lamp A is connected to the main supply of 230 V. Another lamp B having twice the resistance…
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Q: A hair dryer is connected across a 64 V outlet. The resistance of the hair dryer is 43 Ω. a) What…
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Q: The Iceberg Kid, infamous for imposing a deep freeze on whoever disagrees with him, discovers that…
A: Given., Thermal energy is generated W = 177 J For time t = 7.69 Voltage V = 12 V We know the…
Q: You pay an electric company an average of 8.7497 dollars for one kW-h used. How much would it cost…
A: Given: cost of 1KWh = 8.7497 dollars power of AC = 650 W runs 10 hours per day for 30 days
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