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25
×
Why are inductors sometimes called โchokesโ?
Because they limit or โchokeโ rapid changes in current, especially in AC circuits.
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10
×
Which factors increase inductance? (Multiple answers possible)
Iron core
More turns
Larger coil area
Higher current
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15
×
Which component behaves most like an inductor?
Switch
Battery
Water tank
Flywheel
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15
×
Inductors work because of chemical reactions inside them.
True
False
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seesaw
Swap points!
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rocket
Go to first place!
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shark
Other team loses 15 points!
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lifesaver
Give 25 points!
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eraser
Reset score!
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seesaw
Swap points!
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shark
Other team loses 15 points!
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banana
Go to last place!
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15
×
Give one real-life device where an inductor is essential and explain why.
In power adapters or SMPS, inductors store and transfer energy efficiently during switching.
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10
×
What is the main function of an inductor?
Block all current
Store energy in a magnetic field
Increase voltage
Store energy in an electric field
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15
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True or False: Increasing the number of coil turns increases inductance.
True
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15
×
Which unit is used to measure inductance?
Henry
Ohm
Tesla
Farad
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15
×
What is the relationship between inductors and magnetic fields?
Current in an inductor creates a magnetic field, and changes in that field induce voltage.
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15
×
Why are inductors often used in power supplies?
To smooth current, reduce ripple, and filter noise.
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trap
No points!
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seesaw
Swap points!
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shark
Other team loses 10 points!
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banana
Go to last place!
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monster
Reset all scores!
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star
Double points!
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gift
Win 5 points!
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lifesaver
Give 20 points!
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15
×
Inductors store energy permanently.
True
False
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15
×
Why can inductors cause sparks when a switch is opened?
Because the induced high voltage tries to maintain current flow when the circuit is suddenly broken.
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