Name of logic gate whose repeated use can lead to a digital circuit.
An ac voltage of peak value of 20 V is connected in series with a silicon diode and a load resistance of . The forward resistance of the diode is and the barrier voltage is 0.7 V. Find the peak current through diode and the peak voltage across the load. What will happen to these values if the diode is assumed to be ideal?
A transistor is connected in common emitter (CE) configuration. The collector supply is 8 V and the voltage drop across a resistor of in the collector circuit is 0.5 V. If the current gain factor is 0.96, find the base current.
The plate current Ip, in triode value is give by
Where Ip is in milliampere and Vp and Vg are in volt. Calculate the value ofk and the grid cut-off voltage. Given,
milliampere are .
A semiconductor has an electron concentration of and a hole concentration of . Calculate its conductivity. Given electron mobility = 0.135 m2V–1s–1; hole mobility = 0.048 m2V–1s–1.
The electric conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than 2480 nm is incident on it. Find the hand gap of the semiconductor. Given,
Diamond, silicon and germanium each are characterised by valence and conduction bands separated by energy band gaps respectively equal to . Which of the following statements is true?
The input resistance of a common-emitter amplifier is and a-c current gain is 20. If the load resistor used is , calculate transconductance of the transistor used.
In a silicon transistor, a change of 0.02 V in base-to-emitter voltage produces a change of in the base-current and a change of 2 mA in the collector-current. Find the input resistance , the alternating current gain and the trnsconductance of the resistor. If the transistor is used as an amplifier with a load resistance of , find the voltage gain and the power gain of the amplifier.
In a transistor, the base-current is changed by . This result in a change of 0.01 V in base to emitter voltage, and a change of 1.0 mA in the collector-current Find the current gain .
The given logic symbol represents a gate called :