Basic Electronics-3 December 2, 2020December 24, 2020wefru Physics Basic Electricity-3 Multiple Choice Question Answers for all competitive exams Preparation for NEET / JEE Advance , JEE and KSET Preparation. 0 Created on December 02, 2020 By wefru Basic Electronics 3 TEST YOUR KNOWLEDGE OF SCIENCE 1 / 10 JFET biasing at DC level can be undertaken by _____________ Voltage-divider biasing Individual power source biasing Self-biasing All of the above 2 / 10 Determine the value of transconductance for N-channel JFET with IDSS = 9 mA, Vp = -2V, VGS = -1 V. 7.5 mS 7.5 mS 4.5 mS 5.5 mS 3 / 10 Which kind of small signal JFET parameter is also a well-known form of 'Dynamic Drain Resistance' across the drain and source terminals especially when the operation of JFET is faciliated in pinch-off region? AC Drain Resistance DC Drain Resistance Ohmic Resistance Transconductance 4 / 10 Match the following FET behavior with respective Drain Characteristic Regions: 1. Resistor -------------------------------------------- A) Breakdown Region2. Constant-Current Source ------------------ B) Ohmic Region3. Constant-Voltage Source ------------------ C) Pinch-off Region 1-A, 2-C, 3-B 1-C, 2-B, 3-A 1-A, 2-B, 3-C 1-B, 2-C, 3-A 5 / 10 Which region of drain characteristic displays linearity with the direct variation in current corresponding to voltage especially for lesser values of drain-to-source voltage (VDS) by enabling the JFET to act as an ordinary resistor? Breakdown Region Pinch-off Region Ohmic Region Saturation Region 6 / 10 Which type of static characteristics exhibit the relationship between drain current and gate-to-source voltage for several values of drain-to-source voltage? Drain characteristics Transfer characteristics Both a & b None of the above 7 / 10 JFET is considered as a voltage controlled device because ______ Gate current is controlled by drain voltage Drain current is controlled by gate voltage Gate current is controlled by source voltage Drain current is controlled by source voltage 8 / 10 Which current is generated due to shorting of gate terminal to source with zero value of gate-to-source voltage? Zero-source voltage drain current Zero-drain voltage gate current Zero-source voltage gate current Zero-gate voltage drain current 9 / 10 On the application of VDD to JFET, the biasing strategy of gate to channel at any point over the channel yields output equal to _______. Numerical sum of VDS & VGS Numerical difference of VDS & VGS Numerical product of VDS & VGS Numerical division of VDS & VGS 10 / 10 Which is the most significant current generating parameter in common drain JFET amplifier? gmVi gmVgs gmrd gm (1 + Vgs) Your score isThe average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz