A 20 cm section of wire with a current of 8 A is at 90 degrees to a 0.1 T magnetic field. What direction is the force and calculate the size of it? F = B I l F\ =\ BIl F = B I l

down, 0.1 x 8 A x 0.20 m = 0.16 N

up, 0.1 x 8 A x 0.20 m = 0.16 N

Give two ways you can reverse the direction of a basic dc motor?

Keep the magnetic field the same

How does a split ring commutator work?

Swaps the contact every half turn, so that the left-hand and right-hand arms of the coil always experience a force in the same direction.

Swaps the contact every full turn, so that the left-hand and right-hand arms of the coil always experience a force in the same direction.

Swaps the contact every half turn, so that the left-hand and right-hand arms of the coil do not experience a force in the same direction.

In the diagram above, a NEGATIVELY charged particle (so use your LEFT hand!) moving with a velocity v enters a region where there is a uniform magnetic field B . What is the resulting FORCE and path of the negatively charged particle as it moves through this region?

Deflected toward the top of the page

Deflected toward the bottom of the page

Using the RHR, your thumb points in the direction of the

current or point charge velocity (I)

1) A wire carries a current, creating a magnetic field around itself as shown. The current in the wire is:

In the same direction as the magnetic field

Electromagnetism

9th - 12th Grade

•

25 Qs

Similar activities

Đáp án CĐ3 Dạng 2

12th Grade

•

20 Qs

Penilaian Harian Teknologi Reproduksi pada Tumbuhan dan Hewa

9th Grade

•

20 Qs

Sistem Reproduksi pada Manusia

9th Grade

•

20 Qs

Jangka Sorong, Mikrometer Sekrup, Massa dan Waktu

7th - 9th Grade

•

25 Qs

FLOATING BODIES

9th Grade

•

20 Qs

Sistem Reproduksi Manusia

9th Grade

•

20 Qs

Fire D Mini Quiz

2nd Grade - University

•

20 Qs

Examen 3er. Parcial Fisica I

10th Grade

•

20 Qs

Electromagnetism

Quiz

•

Physics, Science

•

9th - 12th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-PS2-5, HS-PS3-3, HS-PS4-1

Standards-aligned

Estelle McNaught

Used 35+ times

FREE Resource

25 questions

Show all answers

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is true about electricity and magnetic fields?

Electricity is needed to create any magnet.

Electricity always creates a magnetic field.

Electricity is stronger than a magnetic field.

Electricity prevents magnetic fields from occurring.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

Add more coils of wire to the nail.

Use a smaller battery.

Reverse the poles of the magnet.

Remove all the coils and the nail.

Tags

NGSS.HS-PS2-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What kind of magnet can be turned on and off?

refridgerator magnet

electromagnet

magnetite

iron

Tags

NGSS.HS-PS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A compass needle responds to a magnetic field, because the compass needle is a

A. generator.

B. motor.

C. magnet.

D. transformer.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when an electric current flows through a wire?

The wire begins to spin.

Nothing happens.

A field of gravity is created around the wire.

A magnetic field is created around the wire.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can a magnet be used to produce an electric current?

Hold a magnet next to a piece of wire.

Wrap wire around a magnet.

Spin the magnet around inside a coil of wire.

Tags

NGSS.HS-PS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A _____________ transforms mechanical energy into electrical energy.

generator

electromagnet

circuit

magnetic field

Tags

NGSS.HS-PS3-3

Create a free account and access millions of resources

Create resources

Host any resource

Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever

or continue with

Microsoft

Apple

Others

Already have an account?

Similar Resources on Wayground

20 questions

Evaluación de diagnóstico

Quiz

•

11th Grade

20 questions

2nd - Classification périodique - Révisions

Quiz

•

9th Grade

20 questions

Science 14 Chemistry Unit Review

Quiz

•

10th Grade

20 questions

TRYOUT UN IPA / FISIKA

Quiz

•

9th Grade

20 questions

PH1_GEM

Quiz

•

12th Grade

20 questions

Diagnóstico II Ciencias Naturales 9°

Quiz

•

9th Grade

20 questions

Waves GCSE intro to A-level

Quiz

•

10th - 11th Grade

20 questions

7C Particles - ECAM

Quiz

•

7th - 10th Grade

Popular Resources on Wayground

5 questions

This is not a...winter edition (Drawing game)

Quiz

•

1st - 5th Grade

25 questions

Multiplication Facts

Quiz

•

5th Grade

10 questions

Identify Iconic Christmas Movie Scenes

Interactive video

•

6th - 10th Grade

20 questions

Christmas Trivia

Quiz

•

6th - 8th Grade

18 questions

Kids Christmas Trivia

Quiz

•

KG - 5th Grade

11 questions

How well do you know your Christmas Characters?

Lesson

•

3rd Grade

14 questions

Christmas Trivia

Quiz

•

5th Grade

20 questions

How the Grinch Stole Christmas

Quiz

•

5th Grade

Discover more resources for Physics

73 questions

IPC 2025 final review

Quiz

•

9th Grade

50 questions

Physical Science Semester 1 Final Exam Review - long

Quiz

•

11th - 12th Grade

20 questions

Energy Tranformations

Quiz

•

9th - 12th Grade

Electromagnetism

25 questions

What is true about electricity and magnetic fields?

This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

What kind of magnet can be turned on and off?

A compass needle responds to a magnetic field, because the compass needle is a

What happens when an electric current flows through a wire?

How can a magnet be used to produce an electric current?

A _____________ transforms mechanical energy into electrical energy.

According to the Right Hand Rule, where is the magnetic field generated around a current-carrying wire?

Faraday demonstrated that an electric current can be created by...

A device that increases or decreases the voltage of alternating current

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Physics