An electric toaster operating on 120 volts draws a current of 53 amperes. The resistance of the toaster is?   Calculate to 1 decimal

Integrated Concepts (a) What is the cost of heating a hot tub containing 1500 kg of water from 10.0°C to 40.0°C, assuming 75.0% efficiency to account for heat transfer to the surroundings? The cost of electricity is 9 cents/kW h. (b) What current was used by the 220-V AC electric heater, if this took 4.00 h?

If a marathon runner averages 9.5 mi/h, how long does it take him or her to run a 26.22-mi marathon?

The unit N m is given the special name of ___ . (4.1)

Find the order of magnitude of the number of table- tennis halls (hat would ill into a typical-size room (without being crushed).

Shown below are the results of an experiment where four devices were connected across a variable voltage source. The voltage is increased and the current is measured. Which device, if any, is an ohmic device?

A copper wire has a resistance of 0.500at 20.0°C, and an iron wire has a resistance of 0.525at the same temperature. At what temperature are their resistances equal?

Voltage is defined as work per___. (8.2)

The following statements are related to household circuits and electrical safety. Determine whether each statement is true (T) or false (F). (a) Circuit breakers are wired in series with the outlets they protect. (b) A circuit breaker rated at 20 A provides a constant current of 20 A to each outlet in the circuit. (c) Three-wire electrical cords help prevent dangerous electrical shocks by grounding the case of a device.

A resistor is placed in a circuit with an adjustable voltage source. The voltage across and the current through the resistor and the measurements are shown below. Estimate the resistance of the resistor.