Magnetic Fields and Their Properties

Magnetic Fields and Their Properties

Assessment

Interactive Video

Physics, Science

9th - 12th Grade

Hard

Created by

Olivia Brooks

FREE Resource

The video tutorial explains how to determine the direction and magnitude of magnetic fields around a wire using the right-hand rule. It covers the calculation of magnetic fields due to a single wire and the interaction between two wires with currents flowing in opposite directions. The tutorial provides step-by-step instructions for using formulas to calculate the magnetic field's strength and direction at various points, emphasizing the impact of distance and current on the field's magnitude.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the direction of the magnetic field above a wire with a current flowing north, according to the right-hand rule?

To the left

To the right

Out of the page

Into the page

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which formula is used to calculate the magnitude of the magnetic field at a certain distance from a wire?

mu zero times current divided by 2 pi r

mu zero times current times r

mu zero divided by current times r

mu zero plus current divided by r

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the magnetic field strength change if the distance from the wire is doubled?

It halves

It triples

It remains the same

It doubles

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the magnetic field strength if the current is tripled?

It triples

It remains the same

It doubles

It halves

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the two-wire problem, what is the direction of the magnetic field created by the first wire above it?

To the right

Into the page

Out of the page

To the left

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the net magnetic field at point A, considering the contributions from both wires?

3.00 x 10^-4 Tesla

2.00 x 10^-4 Tesla

4.00 x 10^-4 Tesla

1.14 x 10^-4 Tesla

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the direction of the net magnetic field at point B below the first wire?

Negative y direction

Positive z direction

Positive y direction

Negative z direction

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