Which of the following equations is a mathematical statement of the Joule's Law of Resistive Heating? O The time rate of conversion of electrical energy to heat energy is directly proportional to the voltage across through the resistor. O The time rate of conversion of electrical energy to heat energy is directly proportional to the square of the voltage across through the O The time rate of conversion of electrical energy to heat energy is directly proportional to the current passing through the resistor. O The time rate of conversion of electrical energy to heat energy is directly proportional to the square of the current passing through the

Which of the following equations is a mathematical statement of the Joule's Law of Resistive Heating? O The time rate of conversion of electrical energy to heat energy is directly proportional to the voltage across through the resistor. O The time rate of conversion of electrical energy to heat energy is directly proportional to the square of the voltage across through the O The time rate of conversion of electrical energy to heat energy is directly proportional to the current passing through the resistor. O The time rate of conversion of electrical energy to heat energy is directly proportional to the square of the current passing through the

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 24P: A person with body resistance between his hands of 10.0k accidentally grasps the terminals of...

See similar textbooks

Similar questions

Consider following circuit with R1 = 62 Ω, R2 = 11 Ω, R3 = 62 / 10 Ω, R4 = 11/10 Ω and and ξ=11 V f. Calculate the potential difference of R2 ? g. Calculate the potential difference of R3 ? h. Calculate the heat dissipation of R2 resistor
Consider following circuit with R1 = 62 Ω, R2 = 11 Ω, R3 = 62 / 10 Ω, R4 = 11/10 Ω and and ξ=11 V e. Calculate currents i1 , i2 and i3 ? f. Calculate the potential difference of R2 ? g. Calculate the potential difference of R3 ? h. Calculate the heat dissipation of R2 resistor i. Cross sections through two long conductors of the same length and material, with square crosssections of edge lengths are shown below. Conductor Y fits snugly within conductor X, Rank theresistance of X and Y?
A hair dryer is connected across a 64 V outlet. The resistance of the hair dryer is 43 Ω. a) What is the current? b) How much power is dissipated? c) How much thermal energy is released after 5 minutes? Remember to include the following when answering these questions: What did you get? (your answer with the correct units and supporting work) How did you get that? (the equation you chose to use to get your answer) Why did you use that? (the concept that supports the use of the equation that you chose to use)
A 250 V battery is connected in series to a 30 Ω resistor that is then connected to a 100 Ω resistor and a 25 Ω resistor that are in parallel. a) What is the equivalent resistance? b) What is the potential drop through each resistor? c) What is the power through each resistor? Remember to include the following when answering these questions: What did you get? (your answer with the correct units and supporting work) How did you get that? (the equation you chose to use to get your answer) Why did you use that? (the concept that supports the use of the equation that you chose to use)
Part A through C please The capacity of a storage battery, such as those used in automobile electrical systems, is rated in ampere-hours (A⋅h). A 50 A⋅h battery can supply a current of 50 A for 1.0 h, or 25 A for 2.0 h, and so on. Part A What total energy can be supplied by a 15 V, 80 A⋅h battery if its internal resistance is negligible? Part B What volume (in liters) of gasoline has a total heat of combustion equal to the energy obtained in part (a)? ( the density of gasoline is 900 kg/m^3) Part C If a generator with an average electrical power output of 0.35 kW is connected to the battery, how much time will be required for it to charge the battery fully?
When running on its 11.4 V battery, a laptop computer uses 8.3 W. The computer can run on battery power for 9.0 h before the battery is depleted.a. What is the current delivered by the battery to the computer?b. How much energy, in joules, is this battery capable of supplying?c. How high off the ground could a 75 kg person be raised using the energy from this battery?
A beam of protons is moving toward a target in a particle accelerator. This beam constitutes a current whose value is 0.32 mA., which is moving through a potential difference of 13.1 kV. The target is an 22-gram block of copper, which is bombarded by these protons for 8 seconds. What is the change in temperature of the block of copper? Copper has a specific heat capacity of 385 J/(kg·°C).Type your answer here °C
A 1500 W cooling device must operate at a voltage of 120 V. a) What is the current flowing in this device? b) How resistant is the device? c) How much energy in kilojoules does the device produce in one 0.5 hour?
25) A 12.0-V emf automobile battery has a terminal voltage of 16.0 V when being charged by a current of 10.0 A. (a) What is the battery’s internal resistance? (b) What power is dissipated inside the battery? (c) At what rate (in °C/min) will its temperature increase if its mass is 20.0 kg and it has a specific heat of 0.300kcal/kg·°C, assuming no heat escapes? Please show all work using this. (Actual values, equations, and drawings)
The heater element of an electric kettle has a constant resistance of 100 Ωand the applied voltage is 250 V. a.) Calculate the time taken by the kettle to boil one liter of water initially at 20ºC if all the electrical energy supplied is used in heating the water and the kettle . The water equivalent of the kettle is 100 g, b.) What percentage of the supplied electric energy is lost in heating the kettle? What percentage of the supplied energy is used in heating the water?c.) Assuming that only 85% of the electrical energy supplied is used in heating the water, determine the time it takes the kettle to boil 1 liter of water from 20oC.
(a) To what temperature must you raise a copper wire,originally at 20.0C , to double its resistance, neglectingany changes in dimensions? (b) Does this happen in household wiring under ordinary circumstances?