Advertisements
Advertisements
प्रश्न
The common-base DC current gain of a transistor is 0.967. If the emitter current is 10mA. What is the value of base current?
उत्तर
Given:
Current gain (α) = 0.967
Emitter current = 10mA
To Find:
The value of base current of the transistor =?
Solution:
- The common gain DC current us is given by
α = 0.967 = `"I"_"C"/"I"_"E"="I"_"C"/10`
IC = 0.967 × 10
IC = 9.67mA - The base current of the transistor is given by the formula
IE = IB + IC
10 = IB + 9.67
IB = 0.33mA
The value of base current of the transistor is 0.33mA
संबंधित प्रश्न
In a common-base connection, the emitter current is 6.28 mA and the collector current is 6.20 mA. Determine the common-base DC current gain.
Derive the relation between α and β.
In a transistor amplifier, IC = 5.5 mA , IE = 5.6 mA. The current amplification factor β is ______
The principle based on which a solar cell operates is ____________.
Explain the need for a feedback circuit in a transistor oscillator.
Transistor functions as a switch. Explain.
A transistor having α = 0.8 is connected in common emitter configuration. When the base current changes by 6 mA, then the change in collector current is ______.
If l1, l2, l3 are the lengths of the emitter, base and collector of a transistor, then ____________.
For a transistor, the current ratio 'βdc' is defined as the ratio of ______.
In an npn transistor, the base current is 100 µA and the collector current is 10 mA. The emitter current is ______.
ln switching circuit, transistor is in ON state and values of IC and IB are 4.2 mA and 5 µA respectively and RC= l k`Omega` and RB= 300 k`Omega`. If VBE = 0.5 V, find the value of VBB.
Which of the following regions of a transistors are, respectively, heavily dopped and lightly dopped?
In case of npn transistors, the collector current is always less than the emitter current because ______.
In an npn transistor circuit, the collector current is 10 mA. If 90% of the electrons emitted reach the collector, the emitter current (IE) and base current (IB) are given by ____________.
A transistor is connected in C - E mode. If collector current is 72 × 10-5 A and α = 0.96, then base current will be ______.
In common emitter amplifier, a change of 0.2 mA in the base current causes a change of 5 mA in the collector current. If input resistance is 2K `Omega` and voltage gain is 75, the load resistance used in the circuit is ______.
In a study of transistor as an amplifier, the ratio of collector current to emitter current is 0.98. The collector current is 3mA, then base current will be approximately ______.
A transistor having α = 0.8 is connected in a common emitter configuration. When the base current changes by 6 mA, the change in collector current is ______
A common emitter amplifier has a voltage gain of 50, an input impedance of 100Ω and an output impedance of 2000Ω. The power gain of the amplifier is ______.
For a transistor, αdc and βdc are the current ratios, then the value of `(beta_"dc"-delta_"dc")/(alpha_"dc".beta_"dc")`
The reverse bias in a junction diode is changed from 8V to 13V, then the value of the current changes from 40μA to 60μA. The resistance of junction diode will be ______.
Explain the working of the n-p-n transistor in a common base configuration.
The collector current in a common-emitter transistor amplifier is 4 mA. When the base current is increased by 20 µA, the collector current increases to 6 mA. The current gain is ______.
How is a transistor biased for operating it as amplifier?
