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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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15
×
Which unit is used to measure inductance?
Farad
Tesla
Ohm
Henry
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15
×
True or False: Increasing the number of coil turns increases inductance.
True
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10
×
What is the main function of an inductor?
Increase voltage
Store energy in an electric field
Block all current
Store energy in a magnetic field
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15
×
Which component behaves most like an inductor?
Flywheel
Battery
Switch
Water tank
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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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boom
Lose 50 points!
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shark
Other team loses 5 points!
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×
shark
Other team loses 25 points!
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×
baam
Lose 10 points!
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25
×
Why are inductors sometimes called âchokesâ?
Because they limit or âchokeâ rapid changes in current, especially in AC circuits.
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15
×
What happens to current in an inductor when voltage suddenly increases?
It decreases to zero
It changes instantly
It reverses direction
It changes gradually
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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
×
An ideal inductor allows DC current to pass once steady state is reached.
True
False
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seesaw
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seesaw
Swap points!
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rocket
Go to first place!
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lifesaver
Give 25 points!
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15
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An inductor resists changes in current.
False
True
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eraser
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magnet
Take 10 points!
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×
gift
Win 25 points!
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×
banana
Go to last place!
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heart
Other team wins 15 points!
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×
shark
Other team loses 20 points!
Okay!
×
shark
Other team loses 20 points!
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×
baam
Lose 25 points!
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10
×
Which factors increase inductance? (Multiple answers possible)
More turns
Iron core
Higher current
Larger coil area
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