Basic Electronics Quiz

Why silicon is preferred over germanium for semiconductor devices?

• Silicon has superior thermal stability.

• Silicon can form high-quality oxide layers.

• Silicon is more abundant and lower cost.

• All of the above.

Ge diode, reverse saturation current = 0.19 µ A, Find forward current when forward biased at 0.3 V at 27 °C.

Forward bias current is 15 mA at 27 °C, Reverse saturation current is 0.24 nA, Find VD.

Si diode, Reverse bias with 5 V at 27 °C, Reverse saturation current 60 pA, Find ID.

A Silicon diode has a saturation current of 1pA at 200C. Determine (a) Diode bias voltage when diode current is 3mA (b) Diode bias current when the temperature changes to 1000C, for the same bias voltage.

A Si diode has reverse sat current 12nA at 20oC. (a) Find the diode current when it is forward biased by 0.65 V. (b) Find the diode current when the temperature rises to 100oC.

Determine the dc resistances at the three different operating points A, B and C.

Determine the AC resistances at operating points A and B.

What is the load-line analysis in circuit theory?

What happens to the load line when the value of R is changed?