ECE21M07L01Q1

A circuit with a fixed emitter current is called

• Base bias

• Emitter bias

• Transistor bias

• Two-supply bias

The first step in analyzing emitter-based circuits is to find the

• Base current

• Emitter voltage

• Emitter current

• Collector current

If the current gain is unknown in an emitter-biased circuit, you cannot calculate the

• Emitter voltage

• Emitter current

• Collector current

• Base current

If the emitter resistor is open, the collector voltage is

• Low
• High
• Unchanged
• Unknown

If the collector resistor is open, the collector voltage is

• Low
• High
• Unchanged
• Unknown

When the current gain increases from 50 to 300 in an emitter-biased circuit, the collector current

• Remains almost the same
• Decreases by a factor of 6
• Increases by a factor of 6
• Is zero

If the emitter resistance increases, the collector voltage

• Decreases
• Stays the same
• Increases
• Breaks down the transistor

If the emitter resistance decreases, the

• Q point moves up
• Collector current decreases
• Q point stays where it is
• Current gain increases

For the emitter bias, the voltage across the emitter resistor is the same as the voltage between the emitter and the

• Base
• Collector
• Emitter
• Ground

For emitter bias, the voltage at the emitter is 0.7 V less than the

• Base voltage
• Emitter voltage
• Collector voltage
• Ground voltage