PN Junction Behavior Quiz
18 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What happens to the flow of holes towards the p-side as more holes accumulate on the p-side?

  • The flow of holes towards the p-side becomes easier
  • The flow of holes towards the p-side remains unchanged
  • The flow of holes towards the p-side becomes random and chaotic
  • The flow of holes towards the p-side becomes harder due to repulsion (correct)

What happens to the flow of electrons towards the n-side as more electrons accumulate on the n-side?

  • The flow of electrons towards the n-side becomes harder due to repulsion (correct)
  • The flow of electrons towards the n-side becomes easier
  • The flow of electrons towards the n-side becomes random and chaotic
  • The flow of electrons towards the n-side remains unchanged

What is the maximum voltage that can be generated in a p-n junction solar cell?

  • The forward bias voltage
  • The reverse bias voltage
  • The open-circuit voltage (Voc) (correct)
  • The short-circuit current (Isc)

What happens to the current flow in a short-circuited p-n junction solar cell?

<p>The current flow is at its maximum (Isc) (A)</p> Signup and view all the answers

Which of the following materials is typically used to form a p-n junction in a solar cell?

<p>Silicon (C)</p> Signup and view all the answers

What is the direction of current flow in a short-circuited p-n junction solar cell?

<p>From n-side to p-side (B)</p> Signup and view all the answers

What is the short-circuit current of a solar cell?

<p>The photocurrent Ip (B)</p> Signup and view all the answers

What defines the power conversion efficiency of a solar cell?

<p>The ratio of output electrical power to incident optical power (C)</p> Signup and view all the answers

What happens at the short-circuit condition of a solar cell?

<p>Current is zero (C)</p> Signup and view all the answers

What is the role of load resistance in a p-n junction solar cell?

<p>It produces a potential difference for current flow (D)</p> Signup and view all the answers

What does forward bias voltage in a p-n junction solar cell result in?

<p>Forward current (A)</p> Signup and view all the answers

What is the V-I characteristic of a solar cell at open-circuit condition?

<p>Zero potential difference and no accumulated charges (A)</p> Signup and view all the answers

What is the short-circuit current ($I_{sc}$) in terms of the photogenerated current ($I_p$)?

<p>$I_{sc} = -I_p$ (A)</p> Signup and view all the answers

What is the open-circuit voltage ($V_{oc}$) in terms of the reverse saturation current ($I_0$) and the photogenerated current ($I_p$)?

<p>$V_{oc} = \frac{k_BT}{e}\ln\left(1+\frac{I_p}{I_0}\right)$ (D)</p> Signup and view all the answers

What condition must be satisfied to find the voltage ($V_m$) that produces the maximum power output from the solar cell?

<p>$\frac{dP}{dV} = 0$ at $V = V_m$ (C)</p> Signup and view all the answers

What is the relationship between the voltage ($V_m$) that produces the maximum power output and the open-circuit voltage ($V_{oc}$)?

<p>$V_m = V_{oc} - \frac{k_BT}{e}\ln\left(1+\frac{I_p}{I_0}\right)$ (B)</p> Signup and view all the answers

What is the maximum power ($P_m$) delivered to the load in terms of the voltage ($V_m$) and the current ($I_m$) at the maximum power point?

<p>$P_m = V_mI_m$ (C)</p> Signup and view all the answers

What is the purpose of the p-n junction in a solar cell?

<p>To provide a barrier that separates the electron-hole pairs generated by light (D)</p> Signup and view all the answers

More Like This

PN Junction Diode Quiz
3 questions
Semiconductor PN Junction Diode
22 questions
PN Junction and Diode Operation
28 questions

PN Junction and Diode Operation

UserFriendlyCello2917 avatar
UserFriendlyCello2917
Use Quizgecko on...
Browser
Browser