Physics II

The heating element of an electric oven is designed to produce 3.3 kW of heat when connected to a 240-V source. What must be resistance of the element?

  1. 👍
  2. 👎
  3. 👁
  1. power = (voltage^2)/resistance

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    (1) which of the following correctly identifies the methods of heat transfer? 1. A- convention B- radiaton C- conduction ~~~~~~~~~~~~~ 2. A- conduction B- radiaton C- convention ~~~~~~~~~~~~~ 3. A- convention B- conduction C-

  2. Physics 2

    The heating element of a clothes dryer has a resistance of 11 and is connnected to a 240-V electrical outlet. What is the current in the heating element? If the clothes dryer is run for 5 minutes, how much energy has been

  3. chemistry

    A microwave oven heats by radiating food with microwave radiation which is absorbed by the food and converted to heat. Suppose an oven's radiation wavelength is 12.5 cm. A container with 0.250 liter of water was placed in the oven

  4. physical science

    The heating elements of an electric toaster is typically made of nichrome wire (an alloy of nickel and chromium). As current passes through the wires, the wires heat up, thus toasting the toast. Estimate the overall resistance of

  1. physics

    please check this: Which sentence best describes electrical conductors? a. electrical conductors have low mass density b. electrical conductors have high tensile strength c. electrical conductors have electric charges that move

  2. science

    A Shiny electric kettle with a 2.0kw heating element has a thermal capacity of 400j/k. 1kg of water at 20degrees celsius is placed in the kettle. The kettle is then switched on and 0.5kg of water remain after 13mins. Ignoring heat

  3. sci

    which of the following is a example of heat transfer by radiation? a. wind currents b. a pot of water boiling on the stove c. a bare foot on a hotsidewalk d. a microwave oven heating food

  4. physics

    The heating element of a clothes dryer has a resistance of 14 and is connected across a 240 V outlet. What is the current in the heating element?

  1. Science

    Match these with the key terms (1) A form of energy that is always transferred from a warmer substance to a cooler one. (2) device that converts hear to a small amount of electric energy often used in temperature sensors. (3) A

  2. Physical Science

    ok so i keep getting one wrong on a 4 question test and failing so can someone tell me what im getting wrong 1. What causes an electric current in a wire? A. Electric fields cause atoms to move in the wire. B. Electrons flow

  3. phy

    An electric kettle contains 1.5 kg of water at 100o C and powered by a 2.0 kW electric element. If the thermostat of the kettle fails to operate, approximately how long will it take for the kettle boil dry? (Take the specific

  4. AP Physics

    An electric furnace runs nine hours a day to heat a house in January (31 days). The heating element has a resistance of 10.6 ohms and is hooked up to a 240 Volt potential. What does it cost to run the furnace in the month of

You can view more similar questions or ask a new question.