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Which of the following is true for a PNP transistor in active region?
9. Which of the following is true for a pnp transistor in active region? Explanation: Whether the transistor in npn or pnp, for it be in active region the EB junction must be reversed bias the CB junction must be forward bias.
What is the use of BC548 transistor?
BC548 transistor is used for amplifying and switching purposes in electrical circuits. Like every other NPN transistor, it consists of three pins: the collector, base, and emitter.
How does a NPN transistor work in a circuit?
The NPN transistor is designed to pass electrons from the emitter to the collector (so conventional current flows from collector to emitter). The emitter “emits” electrons into the base, which controls the number of electrons the emitter emits. The transistor is kind of like an electron valve.
What is the gain of a BC548 transistor?
Brief Description of BC548 BC548 is a NPN transistor so the collector and emitter will be left open (Reverse biased) when the base pin is held at ground and will be closed (Forward biased) when a signal is provided to base pin. BC548 has a gain value of 110 to 800, this value determines the amplification capacity of the transistor.
What is the base voltage of a NPN transistor?
Bi-Polar NPN Transistor. DC Current Gain (hFE) is 800 maximum. Continuous Collector current (IC) is 500mA. Emitter Base Voltage (VBE) is 5V. Base Current(IB) is 5mA maximum. Available in To-92 Package.
Can a BC548 be replaced with a 2N2222 transistor?
It can also be replaced with some well know transistors. BC547, BC549, 2N2222, 2N3904, BC550 (Pin configuration of some transistors may different from BC548, check pin configuration before using or replacing in a circuit)
How can I prove that the npn BJT is in active mode?
You could measure the same two conditions if the BJT is in saturation. If V C E > 0.2 V, then it’s very likely the part is in forward active mode. If V C B > 0, as you said in comments, then it’s safe to say the device is in active mode.