If I1 goes to the right through R1,I2 goes to the right through R2,and I3 goes to the right through R3,what is the resulting equation resulting from applying Kirchhoff's loop rule for a clockwise loop around the perimeter of the circuit?

A) 8.0 V + I1R1 + I3R3 = 0 B) 8.0 V + I1R1 - I3R3 = 0 C) 8.0 V - I1R1 + I3R3 = 0 D) -8.0 V + I1R1 + I3R3 = 0 A) 8.0 V + I1R1 + I3R3 = 0 B) 8.0 V + I1R1 - I3R3 = 0 C) 8.0 V - I1R1 + I3R3 = 0 D) -8.0 V + I1R1 + I3R3 = 0

Exam 18: Direct-Current Circuits Sources of EMF

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Two resistors of values 6 and 11 Ω are connected in parallel.This combination in turn is hooked in series with a 4-Ω resistor and a 22-V battery.What is the current in the 4-Ω resistor?

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Question 61

Five 1.5-volt AA batteries in series power a transistor radio.If the batteries hold a total charge of 200 C,how long will they last if the radio has a resistance of 180 Ω?

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Question 62

Three resistors with values of R₁,R₂ and R₃,respectively,are connected in series.Which of the following expresses the total resistance,R_T,of the three resistors?

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Question 63

The basic function of an electromotive force in a circuit is to do which of the following?

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Question 64

What is the current flowing through the 4-Ω resistor?

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Question 65

When a light bulb is turned on,its resistance increases until it reaches operating temperature.What happens to the current in the bulb as it is warming up?

(Multiple Choice)

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Question 66

If I = 2.0 mA and the potential difference,V_A - V_B = +30 V in the circuit segment shown,determine the charge and polarity of the capacitor.

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Question 67

A 1 000-V battery,a 3 000-Ω resistor,and a 0.50-µF capacitor are connected in series with a switch.The capacitor is initially uncharged.What is the value of the current the moment after the switch is closed?

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Question 68

Household 120-V outlets are made to accept three-pronged plugs.One of the prongs attaches to the "live" wire at 120 V,and another attaches to the "neutral" wire that is connected to ground.What is the round third prong for?

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Question 69

Which resistor is in series with resistor R?

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Question 70

When a 29-Ω resistor is connected across a 16-V battery,a current of 470 mA flows.What is the resulting terminal voltage of the battery?

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Question 71

Three resistors with values R₁,R₂ and R₃,respectively,are connected in parallel.Which of the following expresses the total resistance,R_T,of the three resistors when connected in parallel?

(Multiple Choice)

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Question 72

A 1 000-V battery,a 3 000-Ω resistor,and a 0.50-μF capacitor are connected in series with a switch.The time constant for such a circuit,designated by the Greek letter,τ,is defined as the time that the capacitor takes to charge to 63% of its capacity after the switch is closed.What is the current in the circuit at a time interval of τ seconds after the switch has been closed?

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Question 73

If I₁ goes to the right through R₁,I₂ goes to the right through R₂,and I₃ goes to the right through R₃,what is the resulting equation resulting from applying Kirchhoff's loop rule for a clockwise loop around the perimeter of the circuit?

(Multiple Choice)

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Question 74

The two ends of a 1.4-Ω resistor are connected to a 10.3-V battery.What is the current through the resistor?

(Multiple Choice)

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Question 75

What is the current flowing through the 2-Ω resistor?

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Question 76

When a 21-Ω resistor is connected across a 14-V battery,a current of 458 mA flows.What is the internal resistance of the battery?

(Multiple Choice)

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Question 77

Showing 61 - 77 of 77

Exam 18: Direct-Current Circuits Sources of EMF

Two resistors of values 6 and 11 Ω are connected in parallel.This combination in turn is hooked in series with a 4-Ω resistor and a 22-V battery.What is the current in the 4-Ω resistor?

Five 1.5-volt AA batteries in series power a transistor radio.If the batteries hold a total charge of 200 C,how long will they last if the radio has a resistance of 180 Ω?

Three resistors with values of R1,R2 and R3,respectively,are connected in series.Which of the following expresses the total resistance,RT,of the three resistors?

The basic function of an electromotive force in a circuit is to do which of the following?

What is the current flowing through the 4-Ω resistor?

When a light bulb is turned on,its resistance increases until it reaches operating temperature.What happens to the current in the bulb as it is warming up?

If I = 2.0 mA and the potential difference,VA - VB = +30 V in the circuit segment shown,determine the charge and polarity of the capacitor.

A 1 000-V battery,a 3 000-Ω resistor,and a 0.50-µF capacitor are connected in series with a switch.The capacitor is initially uncharged.What is the value of the current the moment after the switch is closed?

Household 120-V outlets are made to accept three-pronged plugs.One of the prongs attaches to the "live" wire at 120 V,and another attaches to the "neutral" wire that is connected to ground.What is the round third prong for?

Which resistor is in series with resistor R?

When a 29-Ω resistor is connected across a 16-V battery,a current of 470 mA flows.What is the resulting terminal voltage of the battery?

Three resistors with values R1,R2 and R3,respectively,are connected in parallel.Which of the following expresses the total resistance,RT,of the three resistors when connected in parallel?

If I1 goes to the right through R1,I2 goes to the right through R2,and I3 goes to the right through R3,what is the resulting equation resulting from applying Kirchhoff's loop rule for a clockwise loop around the perimeter of the circuit?

The two ends of a 1.4-Ω resistor are connected to a 10.3-V battery.What is the current through the resistor?

What is the current flowing through the 2-Ω resistor?

When a 21-Ω resistor is connected across a 14-V battery,a current of 458 mA flows.What is the internal resistance of the battery?

Introduction

Introduction: Part A

Motion in One Dimension

Motion in One Dimension: Part A

Vectors and Two-Dimensional Motion

Vectors and Two-Dimensional Motion: Part A

The Laws of Motion

The Laws of Motion: Part A

Energy

Energy: Part A

Momentum and Collisions

Momentum and Collisions: Part A

Rotational Motion and the Law of Gravity

Rotational Motion and the Law of Gravity: Part A

Rotational Equilibrium and Rotational Dynamics

Rotational Equilibrium and Rotational Dynamics: Part A

Solids and Fluids

Solids and Fluids: Part A

Thermal Physics

Thermal Physics: Part A

Energy in Thermal Processes Heat and Internal Energy

Energy in Thermal Processes Heat and Internal Energy: Part A

The Laws of Thermodynamics Work in Thermodynamic Processes

The Laws of Thermodynamics Work in Thermodynamic Processes: Part A

Vibrations and Waves

Vibrations and Waves: Part A

Sound

Sound: Part A

Electric Forces and Electric Fields

Electric Forces and Electric Fields: Part A

Electrical Energy and Capacitance

Electrical Energy and Capacitance: Part A

Current and Resistance Electric Current

Current and Resistance Electric Current: Part A

Direct-Current Circuits Sources of EMF: Part A

Magnetism Magnets

Magnetism Magnets: Part A

Induced Voltages and Inductance

Induced Voltages and Inductance: Part A

Alternating-Current Circuits and Electromagnetic Waves

Alternating-Current Circuits and Electromagnetic Waves: Part A

Reflection and Refraction of Light

Reflection and Refraction of Light: Part A

Mirrors and Lenses

Mirrors and Lenses: Part A

Wave Optics

Wave Optics: Part A

Optical Instruments

Optical Instruments: Part A

Relativity

Relativity: Part A

Quantum Physics Blackbody Radiation and Plancks Hypothesis

Quantum Physics Blackbody Radiation and Plancks Hypothesis: Part A

Atomic Physics

Atomic Physics: Part A

Nuclear Physics

Nuclear Physics: Part A

Nuclear Energy and Elementary Particles

Nuclear Energy and Elementary Particles: Part A

Particle Collisions, Mediating Photons, and Quark Structures: Exploring the Fundamentals of Physics

Filters

Three resistors with values of R₁,R₂ and R₃,respectively,are connected in series.Which of the following expresses the total resistance,R_T,of the three resistors?

If I = 2.0 mA and the potential difference,V_A - V_B = +30 V in the circuit segment shown,determine the charge and polarity of the capacitor.

Three resistors with values R₁,R₂ and R₃,respectively,are connected in parallel.Which of the following expresses the total resistance,R_T,of the three resistors when connected in parallel?

If I₁ goes to the right through R₁,I₂ goes to the right through R₂,and I₃ goes to the right through R₃,what is the resulting equation resulting from applying Kirchhoff's loop rule for a clockwise loop around the perimeter of the circuit?