Why is the collector of a transistor made wider than emitter and base ?

The potential difference across the collector of a transistor, used in common emitter mode is 1.5 V, with the collector resistance of 3 kOmega , the emitter current is [ beta= 50 ]

The emitter of transistor is doped the heaviest because it

The dc common emitter current gain of a n-p-n transistor is 50. The potential difference applied across the collector and emitter of a transistor used in CE configuration is, V_(CE)=2V . If the collector resistance, R_(C)=4kOmega, the base current (I_B) and the collector current (I_(C)) are

In a transistor, the collector current is always · less then the emitter current because -

An n-p-n transistor in a common - emitter mode is used as a simple voltage amplifier with a collector current of 4 mA. The positive terminal of a 8 V battery is connected to the collector through a load resistance R_L and to the base through a resistance R_B . The collector - emitter voltage V_(CE) = 4 V , the base - emitter voltage V_(BE) = 0.6 V and the current amplification factor beta = 100 . Calculate the values of R_L and R_B .

An n-p-n transistor in a common-emitter mode is used as a simple voltage-amplifier with a collector current of 4 mA. The terminals of a 8 V battery is connected to the collector through a load-resistance R_L and to the base through a resistance R_B . The collector-emitter voltage V_(CE)=4V , the base-emitter voltage V_(BE) = 0.6 V and the current amplification factor beta_(dc) = 100 . Then

Statement-I : To be used as amplifier, the transistor in the common emitter confuration is preferred to the common base configuration. Statement-II : In the common emitter, the signal is applied between emitter and base.

In a common emitter transistor, the current gain is 80 . What is the change in collector current, when the change in base current is 250 muA ?

Assertion : In common base configuration, the current gain of the transistor is less than unity. Reason : The collector terminal is revers biased for amplification.

Describe briefly with the help of a circuit diagram, how the flow of current carriers in a p-n-p transistor is regulated with emitter-base junction forward biased and base-collector junction reverse biased.