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Chapter 4: Problem 4

In a certain transistor circuit, the base current is 2 percent of the \(30 \mathrm{~mA}\) emitter current. Determine the collector current.

Short Answer

Expert verified
The collector current in the transistor circuit is \(29.4 \mathrm{~mA}\).

Step by step solution

01

Find the base current

The base current is given as 2% of the 30 mA emitter current. To find the base current, we'll multiply the emitter current by the percentage: Base current = \(0.02 \times 30 \mathrm{~mA}\)
02

Calculate the base current

Now, let's compute the base current value: Base current = \(0.02 \times 30 \mathrm{~mA} = 0.6 \mathrm{~mA}\)
03

Apply Kirchhoff's Current Law

According to Kirchhoff's Current Law, the emitter current equals the sum of the base and collector currents: Emitter current = Base current + Collector current
04

Solve for Collector current

We will now rearrange the equation to solve for the collector current: Collector current = Emitter current - Base current
05

Calculate the collector current

Finally, we'll substitute the given values for emitter and base currents: Collector current = \(30 \mathrm{~mA} - 0.6 \mathrm{~mA} = 29.4 \mathrm{~mA}\) Therefore, the collector current in the transistor circuit is 29.4 mA.

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Most popular questions from this chapter

If the base-emitter junction is open, the collector voltage is (a) \(V_{C E}\) (b) \(0 \mathrm{~V}\) (c) flowing (d) \(02 \mathrm{~V}\)

In a pnp transistor, the \(p\) regions are (a) base and emitter (b) base and collector (c) emitter and collector

The three terminals of a bipolar junction transistor are called (a) \(p, n, p\) (b) \(R, p, n\) (c) input output ground (d) base, emitter, collector

The bias condition fine a transistor to be used us a linear amplifier is called (a) forward-reverse (b) forward-forward (c) reverse-reverse (d) collector bias

Once in saturation, a further increase in base current will (a) cause the collector current to increase (b) not affect the collector current (c) cause the collector current to decrease (d) tum the transistor off
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