For transistor action (1) Base, emitter and collector regions should have similar size
For transistor action: (1) Base, emitter and collector regions should have similar size and doping concentrations. (2) The base region…
7 years ago
AIPMT2010
The device can act as a complete electronic circuit is
The device can act as a complete electronic circuit is Options (a) junction diode (b) integrated circuit (c) junction transistor…
7 years ago
Which one of the following bonds produces a solid that reflects light in the visible region
Which one of the following bonds produces a solid that reflects light in the visible region and whose electrical conductivity…
7 years ago
Which one of the following statement is FALSE ?
Which one of the following statement is FALSE about semiconductors? Options (a) Pure Si doped with trivalent impurities gives a…
7 years ago
A common emitter amplifier has a voltage gain of 50, an input impedance of 100Ω
A common emitter amplifier has a voltage gain of 50, an input impedance of 100Ω and an output impedance of…
7 years ago
The potential difference that must be applied to stop the fastest photoelectrons
The potential difference that must be applied to stop the fastest photoelectrons emitted by a nickel surface, having work function…
7 years ago
Source S₁ is producing, 10¹⁵ photons per second of wavelength 5000Å
Source S₁ is producing, 10¹⁵ photons per second of wavelength 5000Å. Another source S₂ is producing 1.02 x 10¹⁵ photons…
7 years ago
A beam of cathode rays is subjected to crossed Electric (E) and Magnetic fields (B)
A beam of cathode rays is subjected to crossed Electric(E) and Magnetic fields(B). The fields are adjusted such that the…
7 years ago
The thermo e.m.f. E in volts of a certain thermocouple is found to vary
The thermo e.m.f. E in volts of a certain thermocouple is found to vary with temperature difference θ in ⁰C…
7 years ago
Consider the following two statements about Kirchhoff’s law
Consider the following two statements: (a) Kirchhoff's junction law follows from the conservation of charge (b) Kirchhoff's loop law follows…
7 years ago