..1 Verizon . * 99%- 7:48 AM Ims.augusta.edu Internal Power Supply R1 12 V- An i

Question

..1 Verizon . * 99%- 7:48 AM Ims.augusta.edu Internal Power Supply R1 12 V- An ideal power supply will have zero internal resistance But in reality there will be a small amount of internal resistance that may affect the actual output voltage of the power supply. The true output voltage of a non-ideal power supply can be modeled as an ideal power supply placed in series with a small resistor. The "load", or your circuit, is then placed in series with the internal resistance of the power supply. This will create a voltage divider (!) reducing the actual voltage of your circuit. If R1 is your "load", or the total equivalent resistance of your circuit, what is the output voltage (voltage across R1) of the non-ideal power supply if R1 is 5 times larger than the internal resistance, and the "ideal power supply has a voltage of 12 V 4 V 9 V 12 V 6 V

Explanation / Answer

R1 = 5 r

r-> internal resistance.

Req = R1 + r = 5 r + r= 6 r

I = V / Req = 12/6r = 2 / r

and terminal voltage = V - I r = 12 - (2 r / r)

= 12 - 2

= 10 volt

Related Questions

Navigate

• Browse (All)
• Browse #
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.