Recent questions tagged pn-junction-diode

Description : When a reverse bias is applied to a diode, it will a. Raise the potential barrier b. Lower the potential barrier c. Increases the majority-carrier a current greatly d. None of these

Last Answer : a. Raise the potential barrier

Description : In the diode equation, the voltage equivalent of temperature is a. 11600/T b. T/11600 c. T x 11600 d. 11600/T2

Last Answer : b. T/11600

Description : A forward potential of 10V is applied to a Si diode. A resistance of 1 KΩ is also in series with the diode. The current is a. 10 mA b. 9.3 mA c. 0.7 mA d. 0

Last Answer : b. 9.3 mA

Description : Avalanche breakdown in a diode occurs when a. Potential barrier is reduced to zero. b. Forward current exceeds certain value. c. Reverse bias exceeds a certain value. d. None of these

Last Answer : c. Reverse bias exceeds a certain value.

Description : When the diode is forward biased, it is equivalent to a. An off switch b. An On switch c. A high resistance d. None of the above

Last Answer : b. An On switch

Description : The knee voltage (cut in voltage) of Si diode is a. 0.2 V b. 0.7 V c. 0.8 V d. 1.0 V

Last Answer : b. 0.7 V

Description : The arrow direction in the diode symbol indicates a. Direction of electron flow. b. Direction of hole flow (Direction of conventional current) c. Opposite to the direction of hole flow d. None of the above

Last Answer : b. Direction of hole flow (Direction of conventional current)