Electronics 2

Which type of diode is specifically designed to operate in the reverse breakdown region?

• Signal Diode

• Power Diode

• Zener Diode

• Tunnel Diode

What is the main advantage of a full-wave rectifier over a half-wave rectifier?

• Requires fewer components

• Has a higher ripple voltage

• Provides continuous conduction

• Converts AC to DC more efficiently

Which type of diode is commonly used in high-frequency applications due to its negative resistance property?

• Zener Diode

• Tunnel Diode

• PIN Diode

• Power Diode

Which diode emits light when a current flows through it?

• PIN Diode

• Zener Diode

• Light Emitting Diode (LED)

• Tunnel Diode

Which transistor configuration consists of two bipolar junction transistors (BJTs) connected to achieve a high current gain?

• NPN Transistor

• Darlington Transistor

• MOSFET

• JFET

What is the primary function of a MOSFET when used as a switch?

• To amplify voltage signals

• To regulate AC power

• To turn circuits on and off efficiently

• To provide temperature compensation

Which device is a four-layer semiconductor switch used for high-power applications?

• JFET

• SCR

• Triac

• UJT

What distinguishes a Triac from an SCR?

• A Triac can conduct in both directions, while an SCR conducts in one direction

• A Triac operates only in DC circuits, while an SCR operates in AC circuits

• A Triac requires a higher voltage to trigger than an SCR

• A Triac is more efficient at low frequencies than an SCR

Which transistor is voltage-controlled and has a high input impedance?

• JFET

• NPN BJT

• PNP BJT

• Darlington Transistor

What is the main difference between Enhancement Mode (EM) and Depletion Mode (DM) MOSFETs?

• EM MOSFETs require a positive gate voltage to conduct, while DM MOSFETs can conduct without it

• DM MOSFETs require a higher voltage than EM MOSFETs

• EM MOSFETs are used only in analog circuits

• DM MOSFETs have a lower resistance than EM MOSFETs