Understanding Transistors and Diodes

What is a transistor and what are its main functions?

• A transistor is a mechanical device that controls fluid flow.

• A transistor is a semiconductor device that amplifies or switches electronic signals.

• A transistor is a type of battery used for storing energy.

• A transistor is a type of resistor that limits current.

Explain the difference between NPN and PNP transistors.

• NPN transistors can operate without a base voltage while PNP transistors cannot.

• PNP transistors use electrons and require a positive base voltage.

• NPN transistors use electrons as majority carriers and require a positive base voltage, while PNP transistors use holes and require a negative base voltage.

• NPN transistors use holes as majority carriers and require a negative base voltage.

ନପେନ ଏବଂ ପିଏନପି ଟ୍ରାନ୍ଜିଷ୍ଟର ମଧ୍ୟରେ ତଫାତ ବ୍ୟାଖ୍ୟା କରନ୍ତୁ।

• NPN ଟ୍ରାନ୍ଜିଷ୍ଟରଗୁଡିକ ବେସ୍ ଭୋଲ୍ଟେଜ୍ ବିନା କାମ କରିପାରିବ ଯେଉଁଥିରେ PNP ଟ୍ରାନ୍ଜିଷ୍ଟରଗୁଡିକ କରିପାରିବ ନାହିଁ।

• PNP ଟ୍ରାନ୍ଜିଷ୍ଟରଗୁଡିକ ଇଲେକ୍ଟ୍ରନ୍ ବ୍ୟବହାର କରେ ଏବଂ ସକାରାତ୍ମକ ବେସ୍ ଭୋଲ୍ଟେଜ୍ ଆବଶ୍ୟକ।

• NPN ଟ୍ରାନ୍ଜିଷ୍ଟରଗୁଡିକ ଇଲେକ୍ଟ୍ରନ୍‌କୁ ପ୍ରଧାନ ଧାରକ ଭାବରେ ବ୍ୟବହାର କରେ ଏବଂ ସକାରାତ୍ମକ ବେସ୍ ଭୋଲ୍ଟେଜ୍ ଆବଶ୍ୟକ, ଯେଉଁଥିରେ PNP ଟ୍ରାନ୍ଜିଷ୍ଟରଗୁଡିକ ହୋଲ୍‌ସ୍ ବ୍ୟବହାର କରେ ଏବଂ ନକାରାତ୍ମକ ବେସ୍ ଭୋଲ୍ଟେଜ୍ ଆବଶ୍ୟକ।

• NPN ଟ୍ରାନ୍ଜିଷ୍ଟରଗୁଡିକ ହୋଲ୍‌ସ୍‌କୁ ପ୍ରଧାନ ଧାରକ ଭାବରେ ବ୍ୟବହାର କରେ ଏବଂ ନକାରାତ୍ମକ ବେସ୍ ଭୋଲ୍ଟେଜ୍ ଆବଶ୍ୟକ।

What are the three terminals of a transistor called?

• Source, Drain, Gate

• Emitter, Base, Collector

• Input, Output, Ground

• Anode, Cathode, Gate

How does a diode differ from a transistor in terms of function?

• A diode allows current to flow in one direction, while a transistor can amplify or switch signals.

• Both a diode and a transistor can only allow current to flow in one direction.

• A diode can amplify signals, while a transistor only allows current to flow in one direction.

• A diode can switch signals, while a transistor only allows current to flow in one direction.

What is the purpose of the base terminal in a transistor?

• The base terminal amplifies the voltage directly.

• The base terminal serves as a power source for the transistor.

• The base terminal is used for heat dissipation in the transistor.

• The base terminal controls the transistor's operation by regulating current flow.

Describe the concept of current amplification in transistors.

• Current amplification in transistors is the ability to increase a small input current to a larger output current, characterized by the current gain (β).

• Current amplification refers to the voltage increase in a circuit.

• Current amplification is the ability to decrease the output current to a smaller input current.

• Current amplification is the process of reducing power consumption in transistors.

What is the role of a diode in a circuit?

• To measure current flow in both directions.

• To increase the voltage in a circuit.

• The role of a diode in a circuit is to allow current to flow in one direction only.

• To store electrical energy in a circuit.

How does a Zener diode differ from a regular diode?

• A Zener diode allows reverse current at a specific voltage, while a regular diode only allows forward current.

• A Zener diode only allows current in one direction, like a regular diode.

• A Zener diode has a higher forward voltage drop than a regular diode.

• A Zener diode can amplify signals, while a regular diode cannot.

What is the significance of the forward bias in a diode?

• Forward bias is used to increase the diode's reverse voltage capability.

• Forward bias causes the diode to act as a resistor.

• Forward bias allows current to flow through the diode, enabling its use in circuits.

• Forward bias prevents current from flowing through the diode.