4.Kirchoff's rules are the junction rule and the loop rule. Which of the following statements is true?A. Both rules are based on the conservation of charge.B. Both rules are based on the conservation of energy.C. The junction rule is based on the conservation of charge, and the loop rule is based onThe conservation of energy.D. The junction rule is based on the conservation of energy, and the loop rule is based on theconservation of charge.

Step 1: Junction rule:This rule states that the sum of currents entering a junction equals the sum…

Answered: 4. Kirchoff's rules are the junction…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 7PE: (a) A defibrillator sends a 6.00-A current through the chest of a patient by applying a 10,000-V...

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Construct Your Own Problem Consider a battery used to supply energy to a cellular phone. Construct a problem in which you determine the energy that must be supplied by the battery, and then calculate the amount of charge it must be able to move in order to supply this energy. Among the things to be considered are the energy needs and battery voltage. You may need to look ahead to interpret manufacturer’s battery ratings in ampere hours as energy in joules.
(a) A defibrillator sends a 6.00-A current through the chest of a patient by applying a 10,000-V potential as in the figure below. What is the resistance of the path? (b) The defibrillator paddles make contact with the patient through a conducting gel that greatly reduces the path resistance. Discuss the difficulties that would ensue if a larger voltage were used to produce the same current through the patient, but with the path having perhaps 50 times the resistance. (Hint: The current must be about the same, so a higher voltage would imply greater power. Use this equation for power: P=I2 RP = .)
(a) A defibrillator passes 12.0 A of current through the torso of a person for 0.0100 s. How much charge moves? (b) How many electrons pass through the wires connected to the patient? (See figure two problems earlier.)
a) How many electrons are contained in one coulomb of charge? b) When a resistor conducts electric current, its temperature increases. Explain how this phenomenon is significant to the application of resistors in electric circuits. In other words, why would we care about a resistor's temperature increasing? c) Define SI unit of the following: Resistance, Voltage, Current, Power d) The potential difference across a capacitor is 5.0 V and the charge on the capacitor is 150nC. Determine the charge on the capacitor when the potential difference is 10.0 V
Question is attached.
Please answer the question numbers 25, 26 and 27.
Which of the following can be explained on the basis of conservation of charge in a closed circuit consisting of a battery, resistor, and metal wires? a. The number of electrons leaving the battery will be equal to the number of electrons entering the battery. b. The number of electrons leaving the battery will be less than the number of electrons entering the battery. c. The number of protons leaving the battery will be equal to the number of protons entering the battery. d. The number of protons leaving the battery will be less than the number of protons entering the battery.
4. It takes 12 Joules to transfer 4 Coulombs of charge from point A to point B. Between A and B is a half feet long resistive cylindrical material whose resistivity is 10 ohm-CM/ft and diameter is 0.01 inches. Determine a. the number of electrons being transferred in a span of 10 seconds b. the power dissipated by the resistive material
Use the circuit given to the right to do the following: a. Determine the voltage across each resistor. 3 k2 18k 2 15 V 9k 2 b. Determine the current through each resistor. c. Determine the power absorbed by each resistor. d. Determine the power output by the voltage source
Several capacitors each of different capacitances are connected in series. Which statement below is TRUE? A. The total charge supplied by the battery is the sum of the charges of the individual capacitors. B. The equivalent capacitance of the circuit is the sum of the individual capacitances. C. Each capacitor holds a different amount of charge. D. The total voltage supplied by the battery is the sum of the voltages across each capacitor. E. The total positive charge in the circuit is the sum of the positive charges on each capacitor
1. Question 1: a. Draw a simple circuit diagram with a battery and a light bulb and how you can simultaneously use a voltmeter to measure the voltage drop across the resistor and use an ammeter to measure the current through the resistor. Label both circuit elements along with the current using the notation from Figures 1 and 2. b. If the battery voltage is 2V and the light bulb resistance is 100, what is the current in this circuit?
Which is not true for resistors? a. controls the flow of electrical current. b. resistance is it's property. c. Resistors are dangerous and cannot be dispose into trash. d. Resistor has two terminals across which X electricity must pass.

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