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Unit: Magnetic effects of electric current

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Magnets and magnetic fields

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Intro to magnetic fields (Why fields?)
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Magnetic field lines (& their properties)
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Practice
Magnetic field lines: directionGet 3 of 4 questions to level up!
Magnetic field lines: special propertiesGet 3 of 4 questions to level up!
Magnetic field lines: field strengthGet 3 of 4 questions to level up!

Quiz 1

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Magnetic fields due to straight wire carrying electric current

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Oersted's experiment (& magnetic field due to current)
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Right hand thumb rule (& solved numerical)
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Practice
Right-hand thumb ruleGet 3 of 4 questions to level up!
Magnetic field around a straight current-carrying wireGet 3 of 4 questions to level up!

Quiz 2

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Magnetic field due to current carrying loops and solenoids

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Magnetic field due to current carrying loop
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Magnetic fields through solenoids
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Practice
Magnetic field due to a current-carrying circular loopGet 3 of 4 questions to level up!
Magnetic field due to a current-carrying solenoidGet 3 of 4 questions to level up!

Quiz 3

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Force on current carrying wire in magnetic field

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Force on a current carrying conductor in a magnetic field
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Fleming's left hand rule
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Fleming's left hand rule: Solved numerical
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Practice
Force on a current in a magnetic fieldGet 3 of 4 questions to level up!
Fleming's left-hand ruleGet 3 of 4 questions to level up!

Quiz 4

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Electric motor

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Electric motor
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Practice
Electric motor: parts and functionsGet 3 of 4 questions to level up!
Electric motor: workingGet 3 of 4 questions to level up!

Quiz 5

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Electromagnetic induction

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Electromagnetic induction (& Faraday's experiments)
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Right hand generator rule
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Practice
Electromagnetic inductionGet 3 of 4 questions to level up!

Prepare for CBSE board exam

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Magnetic effects of electric current: CBSE board practice
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Unit test

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About this unit

Magnets are fun and mysterious. But they can do a lot more than just push and pull each other from a distance. In this chapter, we will learn about the intimate relationship between magnets and electric currents. And we will see how we can use this relationship to build amazing things like motors and generators that have become an essential part of our lives today.