Physics capacitor

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  • Created by: abbin003
  • Created on: 19-12-19 07:53
Define capacitance
The charge stored per unit p.d.
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State the equation for capacitance
C=Q/V
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In which circuit where a capacitor is connected in parallel or series is, the total capacitance greater than the individual capacitances
Parallel
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Would capacitors connected in parallel store more charge for a given p.d.
Yes
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State the 3 equations linking capacitance with work done
W=1/2 QV, W=1/2 V squared multiplied by C, W=1/2 Q squared /C
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What does the capacitor discharge through
A resistor
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What happens to the p.d, the current and capacitances as time increases while the capacitor is discharging
They all decrease
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State an equation linking current with charge, capacitance and resistance
I=-Q/CR
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When discharging a capacitor do u connect a resistor in series or parallel
Parallel
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When charging a capacitor do you connect a resistor in parallel or series
Series
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When charging a capacitor as P.d. of capacitor increases what happens to the p.d. of the resistor and why
P.d. Decreases because Kirchhoffs second law. ( give description of the law)
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How much current is there across the circuit when the capacitor is fully charged
0
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Other cards in this set

Card 2

Front

State the equation for capacitance

Back

C=Q/V

Card 3

Front

In which circuit where a capacitor is connected in parallel or series is, the total capacitance greater than the individual capacitances

Back

Preview of the front of card 3

Card 4

Front

Would capacitors connected in parallel store more charge for a given p.d.

Back

Preview of the front of card 4

Card 5

Front

State the 3 equations linking capacitance with work done

Back

Preview of the front of card 5
View more cards

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