## Circuit Lab B/C

UTF-8 U+6211 U+662F
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### Re: Circuit Lab B/C

Jacobi wrote:Write the voltage drop equations for a capacitor and a resistor.
$V_C = \frac{Q}{C}$

$V_R = IR$

Jacobi
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### Re: Circuit Lab B/C

UTF-8 U+6211 U+662F wrote:
Jacobi wrote:Write the voltage drop equations for a capacitor and a resistor.
$V_C = \frac{Q}{C}$

$V_R = IR$
Awesome! You next.

Jacobi
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### Re: Circuit Lab B/C

UTF-8 U+6211 U+662F wrote:
Jacobi wrote:Write the voltage drop equations for a capacitor and a resistor.
$V_C = \frac{Q}{C}$

$V_R = IR$
Awesome! You next.

UTF-8 U+6211 U+662F
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### Re: Circuit Lab B/C

Jacobi wrote:
UTF-8 U+6211 U+662F wrote:
Jacobi wrote:Write the voltage drop equations for a capacitor and a resistor.
$V_C = \frac{Q}{C}$

$V_R = IR$
Awesome! You next.
All right!

Describe the behavior of an RC circuit which is a) charging and b) discharging.

Jacobi
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### Re: Circuit Lab B/C

UTF-8 U+6211 U+662F wrote: All right!

Describe the behavior of an RC circuit which is a) charging and b) discharging.
a) The voltage through the resistor starts high and decays exponentially as the capacitor becomes saturated.  The charged capacitor has an extremely high voltage drop.
b) The voltage through the resistor starts high and decays exponentially as the capacitor discharges.  The capacitor acts as a voltage source in the absence of other sources.

UTF-8 U+6211 U+662F
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### Re: Circuit Lab B/C

Jacobi wrote:
UTF-8 U+6211 U+662F wrote: All right!

Describe the behavior of an RC circuit which is a) charging and b) discharging.
a) The voltage through the resistor starts high and decays exponentially as the capacitor becomes saturated.  The charged capacitor has an extremely high voltage drop.
b) The voltage through the resistor starts high and decays exponentially as the capacitor discharges.  The capacitor acts as a voltage source in the absence of other sources.

Jacobi
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### Re: Circuit Lab B/C

Do current and voltage sources exist in real circuits?

UTF-8 U+6211 U+662F
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### Re: Circuit Lab B/C

Jacobi wrote:Do current and voltage sources exist in real circuits?
Not ideal ones but they can be approximated; however, real-life sources have a limited amount of charge (which can be measured in ampere-hours) and have internal resistance that sometimes needs to be accounted for.

Jacobi
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### Re: Circuit Lab B/C

UTF-8 U+6211 U+662F wrote:
Jacobi wrote:Do current and voltage sources exist in real circuits?
Not ideal ones but they can be approximated; however, real-life sources have a limited amount of charge (which can be measured in ampere-hours) and have internal resistance that sometimes needs to be accounted for.

UTF-8 U+6211 U+662F
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### Re: Circuit Lab B/C

What is doping in the context of PN junctions and why is it done?

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