electronics.charging_capacitor

When a capacitor is connected with a potential source (AC or DC). It starts to charge at a general speed but when a resistor is connected in the circuit with in series to a capacitor then the capacitor charges slowly means it will take more time than usual. while the capacitor is being charged, the voltage is in exponential function with time.

‘resistance(ohms) * capacitance(farads)’ is called RC-timeconstant which may also be represented as τ (tau). By using this RC-timeconstant we can find the voltage at any time ‘t’ from the initiation of charging a capacitor with the help of the exponential function containing RC. Both at charging and discharging of a capacitor.

Functions

charging_capacitor(→ float)

Find capacitor voltage at any nth second after initiating its charging.

Module Contents

electronics.charging_capacitor.charging_capacitor(source_voltage: float, resistance: float, capacitance: float, time_sec: float) → float

Find capacitor voltage at any nth second after initiating its charging.

Examples

>>> charging_capacitor(source_voltage=.2,resistance=.9,capacitance=8.4,time_sec=.5)
0.013

>>> charging_capacitor(source_voltage=2.2,resistance=3.5,capacitance=2.4,time_sec=9)
1.446

>>> charging_capacitor(source_voltage=15,resistance=200,capacitance=20,time_sec=2)
0.007

>>> charging_capacitor(20, 2000, 30*pow(10,-5), 4)
19.975

>>> charging_capacitor(source_voltage=0,resistance=10.0,capacitance=.30,time_sec=3)
Traceback (most recent call last):
    ...
ValueError: Source voltage must be positive.

>>> charging_capacitor(source_voltage=20,resistance=-2000,capacitance=30,time_sec=4)
Traceback (most recent call last):
    ...
ValueError: Resistance must be positive.

>>> charging_capacitor(source_voltage=30,resistance=1500,capacitance=0,time_sec=4)
Traceback (most recent call last):
    ...
ValueError: Capacitance must be positive.