Task 3 a) The current, i, through a capacitor depends on time, t, and is given by i=c(dv) where V is the voltage across the capacitor and C is the capacitance of the capacitor. Derive an integral expression, in terms of i and C, for the voltage V A capacitor of capacitance 3 x 10-² F has a current i(t) through it where i(t) = 10 - et Determine the function for the voltage across the capacitor a) The change in current through a semiconductor diode depends on the applied voltage and is given by: Le di dv where: = V = applied voltage (V) 1 = diode current (A) Is = reverse saturation current (A) T = temperature (K) q and k are constants Given that when V = 0, 1 = 0 find an expression for the current with voltage. The reverse saturation current for a particular diode is 1 x 10-⁹ A and at 300 K 40. Write down an expression for the current and find the value of the current when V = 0.35 volts. kT
- The current, i, through a capacitor depends on time, t, and is given by
where V is the voltage across the capacitor and C is the capacitance of the capacitor. Derive an integral expression, in terms of i and C, for the voltage V
A capacitor of capacitance 3 x 10-2 F has a current i(t) through it where
Determine the function for the voltage across the capacitor
- The change in current through a semiconductor diode depends on the applied voltage and is given by:
where: V = applied voltage (V)
I = diode current (A)
Is = reverse saturation current (A)
T = temperature (K)
q and k are constants
Given that when V = 0, I = 0 find an expression for the current with voltage.
The reverse saturation current for a particular diode is 1 x 10-9 A and at 300 K 40. Write down an expression for the current and find the value of the current when V = 0.35 volts.

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