A uniform 4.5-T magnetic field passes through the plane of a wire loop 0.20 m2 in area.What flux passes through the loop when the direction of the 4.5-T field is at a 30° angle to the normal of the loop plane?

A) 0.39 T⋅m2 B) 5.0 T⋅m2 C) 0.78 T⋅m2 D) 0.225 T⋅m2 A) 0.39 T⋅m2 B) 5.0 T⋅m2 C) 0.78 T⋅m2 D) 0.225 T⋅m2

Exam 21: Alternating-Current Circuits and Electromagnetic Waves: Part A

A uniform 4.5-T magnetic field passes through the plane of a wire loop 0.20 m² in area.What flux passes through the loop when the direction of the 4.5-T field is at a 30° angle to the normal of the loop plane?

(Multiple Choice)

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Question 21

A coil is placed in a changing magnetic field and an emf is induced.What happens to the induced emf if the rate of change of magnetic field doubles?

(Multiple Choice)

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Question 22

By what factor is the self-inductance of a solenoid changed if its length is doubled and its number of coil turns is tripled?

(Multiple Choice)

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Question 23

By what factor is the self-inductance of a solenoid changed if only its cross-sectional area,A,is doubled?

(Multiple Choice)

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Question 24

A flat coil of wire consisting of 20 turns,each with an area of 80 cm²,is positioned perpendicularly to a uniform magnetic field that increases its magnitude at a constant rate from 2.0 T to 6.0 T in 2.0 s.If the coil has a total resistance of 0.40 Ω,what is the magnitude of the induced current?

(Multiple Choice)

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Question 25

Two loops of wire are arranged so that a changing current in one,the primary,will induce a current in the other,the secondary.The secondary loop has twice as many turns as the primary loop.As long as the current in the primary is steady at 6 A,the current in the secondary will be:

(Multiple Choice)

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Question 26

By what factor does the maximum energy stored in a series RL circuit change if the resistance is doubled and the inductance is tripled in the circuit?

(Multiple Choice)

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Question 27

A circular loop of wire has its radius doubled in time Ät.A uniform magnetic field is at an angle of 60^° to the plane of the coil,and the magnetic field halves its intensity in the same time interval Ät.During this interval,what happens to the flux through the coil?

(Multiple Choice)

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Question 28

By what factor is the self-inductance of a solenoid changed if only its number of coil turns,N,is doubled?

(Multiple Choice)

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Question 29

The magnetic field inside a circular loop of wire of radius 30 cm increases at a constant rate from 2.0 × 10^-3 T to 3.5 × 10^-3 T in 0.47 s.If the resistance of the loop is 0.31 Ω,what is the current in the loop?

(Multiple Choice)

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Question 30

An airplane with a wingspan of 60.0 m flies parallel to the Earth's surface at a point where the downward component of the Earth's magnetic field is 0.400 × l0−⁴ T.If the induced potential between wingtips is 0.600 V,what is the plane's speed?

(Multiple Choice)

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Question 31

A uniform 1.5-T magnetic field passes perpendicularly through the plane of a wire loop 0.30 m² in area.What flux passes through the loop?

(Multiple Choice)

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Question 32

Showing 21 - 32 of 32

Exam 21: Alternating-Current Circuits and Electromagnetic Waves: Part A

A uniform 4.5-T magnetic field passes through the plane of a wire loop 0.20 m2 in area.What flux passes through the loop when the direction of the 4.5-T field is at a 30° angle to the normal of the loop plane?

A coil is placed in a changing magnetic field and an emf is induced.What happens to the induced emf if the rate of change of magnetic field doubles?

By what factor is the self-inductance of a solenoid changed if its length is doubled and its number of coil turns is tripled?

By what factor is the self-inductance of a solenoid changed if only its cross-sectional area,A,is doubled?

A flat coil of wire consisting of 20 turns,each with an area of 80 cm2,is positioned perpendicularly to a uniform magnetic field that increases its magnitude at a constant rate from 2.0 T to 6.0 T in 2.0 s.If the coil has a total resistance of 0.40 Ω,what is the magnitude of the induced current?

Two loops of wire are arranged so that a changing current in one,the primary,will induce a current in the other,the secondary.The secondary loop has twice as many turns as the primary loop.As long as the current in the primary is steady at 6 A,the current in the secondary will be:

By what factor does the maximum energy stored in a series RL circuit change if the resistance is doubled and the inductance is tripled in the circuit?

A circular loop of wire has its radius doubled in time Ät.A uniform magnetic field is at an angle of 60° to the plane of the coil,and the magnetic field halves its intensity in the same time interval Ät.During this interval,what happens to the flux through the coil?

By what factor is the self-inductance of a solenoid changed if only its number of coil turns,N,is doubled?

The magnetic field inside a circular loop of wire of radius 30 cm increases at a constant rate from 2.0 × 10-3 T to 3.5 × 10-3 T in 0.47 s.If the resistance of the loop is 0.31 Ω,what is the current in the loop?

An airplane with a wingspan of 60.0 m flies parallel to the Earth's surface at a point where the downward component of the Earth's magnetic field is 0.400 × l0−4 T.If the induced potential between wingtips is 0.600 V,what is the plane's speed?

A uniform 1.5-T magnetic field passes perpendicularly through the plane of a wire loop 0.30 m2 in area.What flux passes through the loop?

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

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

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

A uniform 4.5-T magnetic field passes through the plane of a wire loop 0.20 m² in area.What flux passes through the loop when the direction of the 4.5-T field is at a 30° angle to the normal of the loop plane?

A flat coil of wire consisting of 20 turns,each with an area of 80 cm²,is positioned perpendicularly to a uniform magnetic field that increases its magnitude at a constant rate from 2.0 T to 6.0 T in 2.0 s.If the coil has a total resistance of 0.40 Ω,what is the magnitude of the induced current?

A circular loop of wire has its radius doubled in time Ät.A uniform magnetic field is at an angle of 60^° to the plane of the coil,and the magnetic field halves its intensity in the same time interval Ät.During this interval,what happens to the flux through the coil?

The magnetic field inside a circular loop of wire of radius 30 cm increases at a constant rate from 2.0 × 10^-3 T to 3.5 × 10^-3 T in 0.47 s.If the resistance of the loop is 0.31 Ω,what is the current in the loop?

An airplane with a wingspan of 60.0 m flies parallel to the Earth's surface at a point where the downward component of the Earth's magnetic field is 0.400 × l0−⁴ T.If the induced potential between wingtips is 0.600 V,what is the plane's speed?

A uniform 1.5-T magnetic field passes perpendicularly through the plane of a wire loop 0.30 m² in area.What flux passes through the loop?