Practice Sources And Fields (4.2.1) - MOVING CHARGES AND MAGNETISM

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8 questions

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Exercise
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6 sample questions

Question 1.
What is an electric field?
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Remember the source of the force.
Question 2.
Who discovered that electric current affects magnets?
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Think of the experiment with the compass.
3Question 3.
What does the Lorentz force describe?
- Force due to Electric Field only
- Force due to Magnetic Field only
- Total force due to both Electric and Magnetic Fields
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Consider both types of fields.
4Question 4.
Are magnetic field lines closed loops?
- True
- False
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Think of how they connect back.
Question 5.
Two parallel wires carry currents of 5 A and 10 A respectively. Calculate the force per unit length between the two wires if they are 0.1 m apart.
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Make sure to convert units where necessary.
Question 6.
Explain qualitatively why the Lorentz force can cause charged particles to move in circular paths in magnetic fields.
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Connect to your knowledge about centripetal forces in mechanics.

4 more questions in this section. Enroll free to practise them all.