What are the shapes of the charging graphs for current, charge and potential difference for a capacitor?
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What is meant by 'time constant' in relation to capacitors?
The time constant is the time it takes for a capacitor to charge to 63.2% of its maximum voltage.
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What is the formula that links time constant (τ), resistance (R), and capacitance (C)?
τ = time constant (s)
R = resistance (Ω)
C = capacitance (F)
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What is the formula linking voltage (V), full charge potential difference (V0), time (t), resistance (R), and capacitance (C) for the discharging of a capacitor?
V = potential difference at time t (V)
V0 = fully charged potential difference (V)
t = time (s)
R = resistance (Ω)
C = capacitance (F)
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What is the formula linking voltage (V), full charge potential difference (V0), time (t), resistance (R), and capacitance (C) for the charging of a capacitor?
V = potential difference at time t (V)
V0 = fully charged potential difference (V)
t = time (s)
R = resistance (Ω)
C = capacitance (F)
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What is the effect of increasing the resistance on the time constant of a capacitor?
Increasing the resistance increases the time constant, which slows down the rate of charging or discharging of the capacitor.
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What is the effect of increasing the capacitance on the time constant of a capacitor?
Increasing the capacitance increases the time constant, which slows down the rate of charging or discharging of the capacitor.
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