Biasing UJT Quiz

What is UJT?

• Unlimited Jumbo Tacos

• Universal Jumper Terminal

• Ultra Junction Transformer

• Unijunction Transistor

What is the purpose of UJT in electronic circuits?

• To generate a trigger pulse for firing the thyristor

• To regulate voltage in the circuit

• To provide resistance in the circuit

• To amplify the signal

How is UJT constructed?

• Heavily doped n-type semiconductor bar with a lightly doped p-type region at one end

• Lightly doped n-type semiconductor bar with a heavily doped p-type region at one end

• Heavily doped p-type semiconductor bar with a lightly doped n-type region at one end

• No doping in the semiconductor bar

What are the materials used in the construction of UJT?

• Plastic and Glass

• Copper and Aluminum

• Gold and Silver

• Silicon and Germanium

What is the working principle of UJT?

• The working principle of UJT is based on the behavior of a PN junction under forward biasing.

• The working principle of UJT is based on the behavior of a PNP transistor

• The working principle of UJT is based on the behavior of a Zener diode

• The working principle of UJT is based on the behavior of a MOSFET

Explain the behavior of UJT during the different biasing conditions.

• The behavior of UJT remains constant regardless of the biasing conditions

• UJT behavior is not affected by any biasing conditions

• UJT only operates in one biasing condition

• The behavior of UJT varies during different biasing conditions such as forward bias, peak point, and valley point.

What are the applications of UJT?

• Television, radio, computer

• Car, bicycle, airplane

• Oscillators, pulse generators, sawtooth generators, and voltage or current-controlled switches

• Toaster, microwave, refrigerator

How is UJT used in the triggering of SCR?

• UJT provides the triggering pulse to the base terminal of the SCR.

• UJT provides the triggering pulse to the gate terminal of the SCR.

• UJT provides the triggering pulse to the cathode terminal of the SCR.

• UJT provides the triggering pulse to the anode terminal of the SCR.