A 45 kW electric heater is designed to run using a 120 V ac source.
Part C
How much energy will you be billed for in a 31-day month if it operates 2.0 h per day? in J
A 45 kW electric heater is designed to run using a 120 V ac source. Part...
A 3.70-kW heater is designed to be connected to a 120-V rms source. What is the power dissipated by the heater if it is instead connected to a 120-V dc source?
Part A A refrigerator draws 3.1 A of current while operating on a 120 V power line. If the refrigerator runs 45 % of the time and electric power costs S0.12 per kw h, how much does it cost to run this refrigerator for a 30-day month? Express your answer using two significant figures. cost- Submit
Part A : The resistance of an electric heater is 90 Ω when connected to 120 V. How much energy does it use during 15 min of operation? (answer in J) Part B : The lightbulb used in a computer projector has a resistance of 71 Ω. What is the current through the bulb when it is operating on 120 V? ( answer in A )
An electric car is designed to run off a bank of 12.0 V batteries with a total energy storage of 1.80 ✕ 107 J. (a) If the electric motor draws 9.00 kW, what is the current delivered to the motor? =_____ A (b) If the electric motor draws 9.00 kW as the car moves at a steady speed of 20.0 m/s, how far will the car travel before it is "out of juice"? =______ km
An all-electric car (not a hybrid) is designed to run from a bank of 12.0 V batteries with total energy storage of 1.90 ✕ 107 J. (a) If the electric motor draws 8.20 kW as the car moves at a steady speed of 20.0 m/s, what is the current (in A) delivered to the motor? 683.33 A (b) How far (in km) can the car travel before it is "out of juice"? 46.34 km (c) What If? The headlights of...
Can someone help with these two questions? 025 (part 1 of 2) 10.0 points An electric car is designed to run on a bank of batteries with a total potential difference of 44 V and a total energy storage of 2.6x107 J. search o hp If the electric motor draws 5.0 kW, what is the current delivered to the motor? Answer in units of A. 026 (part 2 of 2) 10.0 points If the electric motor draws 5.0 kW as...
PartA A refrigerator draws 3.9 A of current while operating on a 120 V power line. If the refrigerator runs 40% of the time and electric power costs $0.12 per kWh, how much does it cost to run this refrigerator for a 31-day month? Express your answer using two significant figures. cost- Prevlous Answers Request Answe Submit X Incorrect; Try Again; One attempt remaining
Problem 24.57 Part A Manufacturing Plant Power A manufacturing plant uses 2.51 kW of electric power provided by a 80.0 Hz ac generator with an rms voltage of 400 V . The plant uses this power to run a number of high-inductance electric motors. The planrs total resistance is R 29.0 Ω and its inductive reactance is XL 40.0 Ω What is the total impedance of the plant? Submit My Answers Gve Up Part B What is the plant's power...
Chapter 26, Problem 049 A 120 W lightbulb is plugged into a standard 120 V outlet. (a) How much does it cost in dollars per 31-day month to leave the light turned on continuously? Assume electrical energy costs US$ 0.08/kWh. (b) What is the resistance of the bulb? (c) What is the current in the bulb? (a) Number Units (b) Number Units (c) Number Units
A 140 W lightbulb is plugged into a standard 12D V outlet. (a) How much does it cost in dollars per 31-day month to leave the light turned on continuously? Assume electrical energy costs US$ 0.07/kW middot h. (b) What is the resistance of the bulb? (c) What is the current in the bulb? (a) Number Units (b) Number Units (c) Number units