In an ohmic conductor, as long as physical conditions, like temperature and pressure, stay constant, current is directly proportional to potential difference
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For a negative temperature coefficient thermistor, how does resistance vary with temperature?
As temperature increases, resistance decreases
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What is the approximate threshold voltage of most diodes?
0.6V
3 of 8
What is festivity affected by?
Light intenstiy and temperature, amongst other things
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What is e.m.f?
Work done by a battery on a charge per unit charge
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What is Kirchhoff's 1st law?
Total current entering a junction = total current leaving it
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What is Kirchhoff's 2nd law?
In a series circuit, total emf = sum of p.ds across components
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How does a potentiometer work?
It has a slider or knob on it, which allows you to adjust relative sizes of R1 and R2.
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Other cards in this set
Card 2
Front
For a negative temperature coefficient thermistor, how does resistance vary with temperature?
Back
As temperature increases, resistance decreases
Card 3
Front
What is the approximate threshold voltage of most diodes?
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