JEE Advanced Semiconductor Electronics — practice questions
42 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice JEE Advanced Semiconductor Electronics in the app →Conductivity of a material is highest in:Energy gap (band gap) of pure silicon at room temperature:In an intrinsic (pure) semiconductor at T > 0:n-type semiconductor is doped with:p-type semiconductor is doped with:A diode allows current to flow:For forward bias of p-n diode:Zener diode is operated in:A diode in half-wave rectifier produces output for:In a transistor (npn), the emitter is:A logic NOT gate (inverter) outputs:For NAND gate: output is 0 when:Solar cell converts:Intrinsic carrier concentration of Si at 300 K is approximately:In doped semiconductor at thermal equilibrium: n_e × n_h =For Si diode with reverse saturation current I₀ = 10⁻¹² A at room temperature (V_T = kT/e ≈ 0.026 V), forward Common-emitter transistor with β = 100 has base current 50 μA. Collector current:For a full-wave bridge rectifier with AC input V_rms, peak DC output voltage:Truth table for AND gate (2 inputs): output is 1 when:For NPN transistor in active mode, base-emitter junction is ___ and base-collector is ___:An intrinsic semiconductor at room temperature has:Doping silicon with a pentavalent element like phosphorus creates a semiconductor in which:A p-n junction diode is forward biased when:The output of an AND gate is HIGH only when:The deliberate addition of a desirable impurity to a semiconductor is called:The impurity atoms added to a semiconductor are called:The energy band containing the energy levels of the valence electrons is called the:The energy band lying above the valence band is called the:Doping silicon or germanium with a pentavalent element produces which semiconductor?Doping silicon or germanium with a trivalent impurity produces which semiconductor?A pentavalent dopant donates one extra electron and is therefore known as a:In a p-type semiconductor, which carriers are the majority carriers?In an intrinsic semiconductor, how do the electron and hole concentrations compare?For insulators, the energy gap is stated as being greater than:For metals, the energy gap is described as being approximately:The region on either side of a p-n junction emptied of free charges is called the:The potential that prevents electrons moving from the n region into the p region is called the:When a diode has its p-side connected to the positive battery terminal, it is said to be:When the n-side of a diode is positive and the p-side negative, the diode is:The property of a diode that lets it convert alternating voltage is used in a circuit called a:The energy gap of silicon is given as approximately:The energy gap of germanium is given as approximately: