Question 1

Two 4.0-Ω resistors are connected in parallel,and this combination is connected in series with 3.0 Ω.What is the equivalent resistance of this system?

Accepted Answer

A) 1.2 Ω 
B) 5.0 Ω 
C) 7.0 Ω 
D) 11 Ω 
A) 1.2 Ω 
B) 5.0 Ω 
C) 7.0 Ω 
D) 11 Ω

Question 2

Three resistors with resistances of 2.0 Ω,6.0 Ω,and 12 Ω are connected across an ideal dc voltage source V,as shown in the figure.If the total current in the circuit is I = 5.0 A,what is the current through the 12-Ω resistor?

Accepted Answer

A) 1.7 A 
B) 2.5 A 
C) 0.56 A 
D) 5.0 A 
E) 0.75 A 
A) 1.7 A 
B) 2.5 A 
C) 0.56 A 
D) 5.0 A 
E) 0.75 A

Question 3

What is the current through a resistor if 4.0 × 1016 electrons pass a point in the resistor in 0.50 s? (e = 1.60 × 10-19 C)

Accepted Answer

A) 0.013 A 
B) 0.31 A 
C) 6.3 A 
D) 78 A 
A) 0.013 A 
B) 0.31 A 
C) 6.3 A 
D) 78 A

Question 4

A certain metal wire has a cross-sectional area of 1.0 cm2 and a resistivity of 1.7 × 10-8 Ω ∙ m.How long would it have to be to have a resistance of 1.0 Ω?

Accepted Answer

A) 5.9 × 106 m 
B) 5.9 m 
C) 5.9 × 104 m 
D) 590 m 
E) 5.9 km 
A) 5.9 × 106 m 
B) 5.9 m 
C) 5.9 × 104 m 
D) 590 m 
E) 5.9 km

Question 5

A 4.0-Ω resistor is connected to a 12-Ω resistor and this combination is connected to an ideal dc power supply with voltage V as shown in the figure.If the total current through this circuit is I = 2.0 A,what is the value of voltage V?

Accepted Answer

A) 2.0 V 
B) 3.0 V 
C) 6.0 V 
D) 1.5 V 
E) 8.0 V 
A) 2.0 V 
B) 3.0 V 
C) 6.0 V 
D) 1.5 V 
E) 8.0 V

Two 4.0-Ω resistors are connected in parallel,and this combination is connected in series with 3.0 Ω.What is the equivalent resistance of this system?

Three resistors with resistances of 2.0 Ω,6.0 Ω,and 12 Ω are connected across an ideal dc voltage source V,as shown in the figure.If the total current in the circuit is I = 5.0 A,what is the current through the 12-Ω resistor?

What is the current through a resistor if 4.0 × 10¹⁶ electrons pass a point in the resistor in 0.50 s? (e = 1.60 × 10^-19C)

A certain metal wire has a cross-sectional area of 1.0 cm² and a resistivity of 1.7 × 10^-8 Ω ∙ m.How long would it have to be to have a resistance of 1.0 Ω?

A 4.0-Ω resistor is connected to a 12-Ω resistor and this combination is connected to an ideal dc power supply with voltage V as shown in the figure.If the total current through this circuit is I = 2.0 A,what is the value of voltage V?

Introduction

Kinematics: Motion in One Dimension

Newtonian Mechanics

Applying Newtons Laws

Circular Motion

Impulse and Linear Momentum

Work and Energy

Extended Bodies at Rest

Rotational Motion

Gases

Static Fluids

Fluids in Motion

First Law of Thermodynamics

Second Law of Thermodynamics

Electric Charge force and Energy

The Electric Field

Magnetism

Electromagnetic Induction

Vibrational Motion

Mechanical Waves

Reflection and Refraction

Mirrors and Lenses

Wave Optics

Electromagnetic Waves

Special Relativity

Quantum Optics

Atomic Physics

Nuclear Physics

Particle Physics

Filters

Exam 17: Dc Circuits

Two 4.0-Ω resistors are connected in parallel,and this combination is connected in series with 3.0 Ω.What is the equivalent resistance of this system?

Three resistors with resistances of 2.0 Ω,6.0 Ω,and 12 Ω are connected across an ideal dc voltage source V,as shown in the figure.If the total current in the circuit is I = 5.0 A,what is the current through the 12-Ω resistor?

What is the current through a resistor if 4.0 × 1016 electrons pass a point in the resistor in 0.50 s? (e = 1.60 × 10-19 C)

A certain metal wire has a cross-sectional area of 1.0 cm2 and a resistivity of 1.7 × 10-8 Ω ∙ m.How long would it have to be to have a resistance of 1.0 Ω?

A 4.0-Ω resistor is connected to a 12-Ω resistor and this combination is connected to an ideal dc power supply with voltage V as shown in the figure.If the total current through this circuit is I = 2.0 A,what is the value of voltage V?

Introduction

Kinematics: Motion in One Dimension

Newtonian Mechanics

Applying Newtons Laws

Circular Motion

Impulse and Linear Momentum

Work and Energy

Extended Bodies at Rest

Rotational Motion

Gases

Static Fluids

Fluids in Motion

First Law of Thermodynamics

Second Law of Thermodynamics

Electric Charge force and Energy

The Electric Field

Magnetism

Electromagnetic Induction

Vibrational Motion

Mechanical Waves

Reflection and Refraction

Mirrors and Lenses

Wave Optics

Electromagnetic Waves

Special Relativity

Quantum Optics

Atomic Physics

Nuclear Physics

Particle Physics

Filters

What is the current through a resistor if 4.0 × 10¹⁶ electrons pass a point in the resistor in 0.50 s? (e = 1.60 × 10^-19C)

A certain metal wire has a cross-sectional area of 1.0 cm² and a resistivity of 1.7 × 10^-8 Ω ∙ m.How long would it have to be to have a resistance of 1.0 Ω?