When an NPN transistor is cut off its VCC is?

So Vce is Vcc when the transistor is operated in cutoff. In digital logic, Vcc is termed as ‘high’ voltage and 0 is termed as ‘low’ voltage. So, we can say Vce is high when the transistor in the above circuit is operated in the cut off region.

What will happen if NPN transistor is used as amplifier?

When the npn transistor is in forward bias, electrons flow from emitter to base. Electrons and holes always move in opposite directions. Thus, when an npn transistor is used as an amplifier, holes move from base to emitter. So, the correct answer is option D i.e. holes move from base to emitter.

What happens if you connect a transistor in backwards?

Yes current can flow in both directions. An NPN transistor backwards is also an NPN. There will still be a reverse beta, however, the backwards NPN transistor won’t work as well as a correctly oriented one will. It’s not recommended.

What happens when a transistor is cut off?

If the transistor is cut-off, there is no base current, so there is no collector or emitter current. That is collector emitter pathway is open [See Below Fig.] (ii)]. In saturation, the collector and emitter are, in effect, shorted together.

When a transistor is switch off VCE approximately equals?

When the transistor is either in saturation or cutoff modes, it dissipates little power. When in cutoff, there is no current flow between collector and emitter thus P = Vce ∗ Ic = 0.

When an PNP transistor is used as an amplifier?

When NPN transistor is used as an amplifier, majority charge carriers electrons of N-type emitter move from emitter to base and than base to collector.

Will reverse polarity damage a transistor?

The unpolarized paths don’t care, but the others do. For example, anything that is based on a diode (transistor, ic, scr, rectifier, led, etc), can be damaged by forcing too much current through it in the reverse direction.