Semiconductor Questions

In a common emitter (CE) amplifier having a volagegain G, the transistor used has transconductance0.03 mho and current gain 25. If the abovetransistor is replaced with another one withtransconductance...

In a n-type semiconductor, which of the following statement is true:

The given graph represents V - I characteristic for a semiconductor device. Which of the following statement is correct?...

The barrier potential of a p-n junction depends on : a. Type of semiconductor material b. Amount of doping c. Temperature Which one of the following is correct?...

n-type semiconductors will be obtained,when germanium is doped with :-

In a p-n junction the depletion layer of thickness 10−6 m has potential across it is 0.1 V. The electric field is (V/m) :-

If in a p-n junction, a square input signal of 10 V is applied as shown, then the output across RL will be :...

In a common emitter amplifier circuit using an n-p-n transistor, the phase difference between the input and the output voltages will be

Which one of the following represents forward bias diode ?

In a p-n junction diode, change in temperature due to heating :-

A diode detector is used to detect an amplitude modulated wave of 60% modulation by using a condenser of capacity 250 pico farad in parallel with a load resistance 100 kilo ohm. Find the maximum modul...

The I-V characteristic of an LED is :

Truth table for system of four NAND gates asshown in figure is :-

To get an output Y = 1 in given circuit which of the following input will be correct:

The input resistance of a silicon transistor is 100 Ω. Base current is changed by 40 mA, which resultsin a change in collector current by 2 mA. This transistor is used as a common emitter amplifi...

In a CE transistor amplifier, the audio signal voltage across the collector resistance of 2 kΩ is 2V. If thebase resistance is 1 kΩ and the current amplification of the transistor is 100, th...

Two ideal diodes are connected to a battery as shown in the circuit. Thecurrent supplied by the battery is...

The figure shows a logic circuit with two inputs A and B and the output C. The voltage wave formsacross A, B and C are as given. The logic circuit gate is...

Transfer characteristics [output voltage(V0) vs input voltage (Vi)]for a base biased transistor in CE configuration is as shown in thefigure. For using transistor as a switch, it is used...

C and Si both have same lattice structure, having 4 bonding electrons in each. However, C is insulatorwhere as Si is intrinsic semiconductor. This is because