What happens when magnetic lines of flux in opposite directions come into contact?

They have no effect on each other

How are magnetic lines of flux affected by nonmagnetic materials?

They are unaffected by nonmagnetic materials

They are attracted to nonmagnetic materials

They are repelled by nonmagnetic materials

They are distorted by nonmagnetic materials

The force of attraction between magnets is inversely proportional to the square of what?

The temperature of the environment

According to Faraday's Law of Induction, which three ingredients are necessary to produce induction?

Electricity, Magnetic field, Motion

Electricity, Magnetic field, Light

What effect does increasing the number of coils have on the magnetic field and voltage according to Faraday's Law of Induction?

Strengthens the magnetic field and increases the voltage

Decreases the magnetic field and voltage

Increases the magnetic field but decreases the voltage

Decreases the magnetic field but increases the voltage

What is the direction of current flow in direct current (DC)?

Only from the positive end to the negative end

Only from the negative end to the positive end

Which of the following statements is true about the flow of electrons in alternating current (AC)?

Electrons keep switching directions, going forwards and backwards

Electrons only flow from the positive end to the negative end

Electrons only flow from the negative end to the positive end

Electrons flow in one direction only

What does mutual induction involve?

A current in one coil inducing a current in a second coil

A current in one coil inducing a current in the same coil

A current in one coil inducing a voltage in a second coil

A current in one coil inducing a magnetic field in a second coil

What is self-induction?

A current in one coil inducing an opposing current in the same coil

A current in one coil inducing a current in a second coil

A current in one coil inducing a voltage in the same coil

A current in one coil inducing a magnetic field in the same coil

What is required for self-induction to occur?

A magnetic field with constant polarity

What is the function of an iron core in a transformer?

It helps to direct and strengthen the magnetic field

It reduces the efficiency of the transformer

What allows a transformer to function according to the principle of electromagnetic induction?

An alternating current moving through the primary coil

A direct current in the secondary coil

A battery connected to the primary coil

A static magnetic field around the iron core

What do transformers do in an electrical circuit?

Keep the power equal on both sides

How is the voltage related to the number of turns in a transformer?

Voltage is directly proportional to the number of turns

Voltage is inversely proportional to the number of turns

Voltage is not related to the number of turns

Voltage is only dependent on the current

How is the current related to the number of turns in a transformer?

Current is inversely proportional to the number of turns

Current is directly proportional to the number of turns

Current is not related to the number of turns

Current is only dependent on the voltage

What makes a transormer a step-up transformer?

The secondary side has more turns than the primary side.

The primary side has more turns than the secondary side.

The primary side has a higher voltage than the secondary side.

The secondary side has a lower voltage han the primary side.

xray circuits part II

12th Grade

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47 Qs

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xray circuits part II

Quiz

•

Science

•

12th Grade

•

Practice Problem

•

Easy

•

NGSS

HS-PS2-5, HS-PS3-5, MS-PS2-3

Standards-aligned

CHRISTINA B

Used 25+ times

FREE Resource

47 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Electricity and magnetism both fall under the phenomenon of what?

Gravitational force

Electromagnetism

Nuclear force

Friction

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Magnetism is defined as the ability of a material to attract which of the following materials?

Aluminum, copper, and zinc

Iron, cobalt, and nickel

Gold, silver, and platinum

Wood, plastic, and glass

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a magnetic field?

The area inside a magnet where magnetic force is not present

The area around a magnet where magnetic force is exerted

The area around a magnet where electric charge is not present

The area inside a magnet where electric charge is present

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does an atom form when the electrons are predominantly spinning in one direction?

Electric dipole

Magnetic domain

Magnetic dipole

Atomic nucleus

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are groups of dipoles that are similarly aligned known as?

Electric fields

Magnetic fields

Magnetic domains

Atomic structures

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to magnetic dipoles when they are placed in a strong magnetic field?

They repel each other

They do not change

They arrange themselves to match the direction of an external magnetic field

They become electrically charged

Tags

NGSS.HS-PS3-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do magnetic fields contain?

Lines of electricity

Lines of force in space called flux

Lines of thermal energy

Lines of gravitational force

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

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xray circuits part II

47 questions

Electricity and magnetism both fall under the phenomenon of what?

Magnetism is defined as the ability of a material to attract which of the following materials?

What is a magnetic field?

What does an atom form when the electrons are predominantly spinning in one direction?

What are groups of dipoles that are similarly aligned known as?

What happens to magnetic dipoles when they are placed in a strong magnetic field?

What do magnetic fields contain?

What is the direction of magnetic lines of flux inside a magnet?

What happens when magnetic lines of flux in opposite directions come into contact?

How are magnetic lines of flux affected by nonmagnetic materials?

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