EE206 Quiz A-1

Find V_th and R_th.

• V_th = 3 V

  R_th = 2 kΩ

• V_th = 1.2 V

  R_th = 2 kΩ

• V_th = 3 V

  R_th = 1.2 kΩ

• V_th = 1.2 V

  R_th = 1.2 kΩ

Find V_th and R_th.

• V_th = 8 V

  R_th = 66.7 kΩ

• V_th = 4 V

  R_th = 66.7 kΩ

• V_th = 8 V

  R_th = 200 kΩ

• V_th = 4 V

  R_th = 200 kΩ

Find the short-circuit current at a-a'.

• 1 mA

• 0 A

• 1.33 mA

• 4 mA

Find I_SC.

• 1.6 mA

• 1 mA

• 0 A

• 2.67 mA

Which group of material has a property where its conductivity can vary in a wide range by adding a small amount of impurity?

• Semiconductor

• Conductor

• Insulator

• Crystalline

Is the following statement TRUE or FALSE?

"In semiconductor, when an electron is thermally excited by breaking a bond, it generates two mobile holes."

• FALSE

• TRUE

When phosphorus atoms are added to silicon, they ______ electrons to make silicon _____ type.

• add free

  n

• add free

  p

• accept

  n

• accept

  p

When boron atoms are added to silicon, they ______ electrons to make silicon _____ type.

• add free

  n

• add free

  p

• accept

  n

• accept

  p