what is the energy used of a light bulb if its plugged into a 100 V outlet for 100 hours and has 140 ohms resistance
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what is the energy used of a light bulb if its plugged into a 100 V outlet for 100 hours and has 140 ohms resistance
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- 3. If you need 20,000 A of current to carry out an electrolysis for 10 mins, whatvoltage would you need if you are to used 1.6 kWh for the process. (provide the given and required to find in the problem) (Kindly provide a CLEAR and COMPLETE solution) (Answer should be typewritten)How much energy will be consumed of a 500 W Water Heater runs for 20 hours continuously? If the company charges 2 cents per kWh, how much amount the consumer will be charged?A heater uses 20 A when connected to a 220-V line. If electric power costs 10 centavos per kilowatt-hour, the cost of running the heater for 10 hours is
- 9. An electric motor has an apparent resistance of 15 Ω. If 8 A of current are flowing through the motor, what is the connected voltage?Please assume a price for electric energy of $0.15/kWh. If washer A costs $750 and uses 200 kWh of energy per year to operate, and washer B costs $300 and uses 800 kWh of electricity per year to operate, which of the two washers costs less to own and operate over a period of ten years?An automobile dashboard ammeter shows 10.8 A of current flowing when the headlights are lit. If the current is drawn from the 12-V storage battery, what is the resistance of the headlights?
- Suppose that each headlight of a car uses 3 A and that the driver accidentally left the headlights on. How long will it take for a 12 V battery rated 80 A to be fully discharged?What is the power rating (in kW) of a device which has a resistance of 150 ohms and draws 6Amps of current?An aluminum cable has a resistance of 44 at 30C. calculate the resistance of the cable when the sun heats it up to 70C
- The electric resistence of a light bulb is 159 ohms. Determine the value of the current flowing through the lamp when its connected to a 100v supply.A certain appliance uses 350 W of power. If the device is allowed to run non-stop for 24 days, then how many kWh of energy will it consume?7. An ampere-hour meter calibrated at 200 V is used on 220 V circuit and indicates a consumption of 730 kWh in a certain period. If this period is reckoned as 200 hrs. What is the average value of the current?
