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3 cards from this section. Quick, good the night before a test.
What is the role of the base current in a transistor?
Think about what smaller current influences a larger current.
Describe what happens in a forward-biased n-p-n transistor.
Focus on the potential differences in a forward setup.
What is the current flow direction in an n-p-n transistor?
Visualize the current highways in the transistor.
True or False: In a p-n-p transistor, the base current is always negative.
Remember how bias voltages are set.
If an n-p-n transistor has a base-emitter voltage of 0.7 V and a collector-emitter voltage of 5 V, what are the conditions for proper operation?
Check biasing conditions.
Consider a circuit with a p-n-p transistor where the base current is increased to 20 µA with β = 100. Calculate the new collector current.
Use the gain formula for calculation.
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