A ribbon of material with a rectangular cross sectional area of (0.25 mm x 1.00 mm), length 21.9 cm and resistance 1.5 is used as a heating element in a toaster. What is the resistivity of the material? Select one: O a. 1.00 x 10-6 0-m O b. 1.50 x 10-6 Q-m O .1.97 x 10-6 2m O d. 1.31 x 10-6 0-m O e. 1.71 x 10-6 0-m

A ribbon of material with a rectangular cross sectional area of (0.25 mm x 1.00 mm), length 21.9 cm and resistance 1.5 is used as a heating element in a toaster. What is the resistivity of the material? Select one: O a. 1.00 x 10-6 0-m O b. 1.50 x 10-6 Q-m O .1.97 x 10-6 2m O d. 1.31 x 10-6 0-m O e. 1.71 x 10-6 0-m

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter26: Current And Resistance

Section: Chapter Questions

Problem 50CP: Material with uniform resistivity is formed into a wedge as shown in Figure P26.50. Show that the...

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Similar questions

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A 10.00-meter long wire cable that is made of copper has a resistance of 0.051 ohms, (a) What is the weight if the wire was made of copper? (b) What is the weight of a 10.00-meter-long wire of the same gauge made of aluminum? (c)What is the resistance of the aluminum wire? The density of copper is 8960 kg/m3 and the density of aluminum is 2760 kg/m3.
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A 20.00-V battery is used to supply current to a 10-k resistor. Assume the voltage drop across any wires used for connections is negligible, (a) What is the current through the resistor? (b) What is the power dissipated by the resistor? (c) What is the power input from the battery; assuming all the electrical power is dissipated by the resistor? (d) What happens to the energy dissipated by the resistor?
A child's electronic toy is supplied by three 1.58-V alkaline cells having internal resistances of 0.0200 inseries with a 1.53-V carbon-zinc dry cell having a 0.100- internal resistance. The load resistance is 10.0 . (a) Draw a circuit diagram of the toy and itsbatteries, (b) What current flows? (c) How much power is supplied to the load? (d) What is the internal resistance of the dry cell if it goes bad, resulting in only 0.500 W being supplied to the load?
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