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Card 16
Front
In a thermistor, what causes the resistance to change, and how does it change?
Back
Card 17
Front
Why does the current pass through this diode (look at diagram)?
Back
Card 18
Front
Define current.
Back
Card 19
Front
How can the same motor be made to have different speed settings?
Back
Card 20
Front
What are rarefractions?
Back
Card 21
Front
How can ultrasound be used to treat a patient with kidney stones?
Back
Card 22
Front
How do scientists stop nuclear fission reactions going out of control?
Back
Card 23
Front
Nuclei of hydrogen isotopes undergo fission to form what kind of nuclei?
Back
Card 24
Front
How do anti-static sprays work?
Back
Card 25
Front
How does heating a thermistor affect the brightness of a lamp?
Back
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