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A transistor is used in common emitter mode as an amplifier. Then a. The base-emitter junction is forward biased b. The base-emitter junction is reverse biased  c. The input signal is connected in series with the voltage applied to the base-emitter junction  d. The input signal is connected in series with the voltage applied to bias the base-collector junction Which of the following statement is true?
For a narrow base PNP BJT, the excess minority carrier concentrations (ΔnE for emitter, ΔpB for base, ΔnC for collector) normalized to equilibrium minority carrier concentrations (nE0 for emitter, pB0 for base, nC0 for collector) in the quasi-neutral emitter, base and collector regions are shown below. Which one of the following biasing modes is the transistor operating in?
For transistor action (a) Base, emitter, and collector regions should have similar size and doping concentrations. (b) The base region must be very thin and lightly doped. (c) The emitter-base junction is forward biased and the base-collector junction is reverse biased. (d) Both the emitter-base junction as well as the base-collector junction are forward biased. Which one of the following pairs of statements is correct?
In a grounded-emitter transistor, when emitter current becomes zero in cut-of region the emitter potential is called
Choose the right option among the alternatives – A transistor conducts in its forward direction when its collector/emitter/base, is positive with respect to its collector/emitter/base, and when a turn-on voltage or current signal is applied to its collector/emitter/base.
which of the following country is the highest emitter of CO2?
Which of the following country is the highest emitter of CO2 ?
জলজ উদ্ভিদে সালোকসংশ্লেষণের হার বেশি কারণ-i. পানিতে CO2 এর পরিমাণ 0.3%ii. সকল অঙ্গ CO2, শোষণ করতে পারেiii. CO2, ও O2, এর পরিমাণ সমাননিচের কোনটি সঠিক?
জলজ উদ্ভিদে সালোকসংশ্লেষণ হার বেশি কারণ-i. পানিতে CO2 এর পরিমাণ 0.3%ii. সকল অম্ল CO2 শোষণ করতে পারেiii. পানিতে , ও CO2 এর পরিমাণ সমাননিচের কোনটি সঠিক?
গ্রিন হাউজ গ্যাসসমূহ হলো-i. CO2 CH4, O2ii. CO2 CH4 N2Oiii. CO2 O2 N2Oনিচের কোনটি সঠিক?