Electronic Devices And Circuits Set 7
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This set of Electronic Devices and Circuits Multiple Choice Questions & Answers (MCQs) focuses on Electronic Devices And Circuits Set 7
Q1 | Between the branch voltages of a loop the Kirchhoff s voltage law imposes
- non-linear constraints
- linear constraints
- no constraints
- none of the above
Q2 | A terminal where three on more branches meet is known as
- node
- terminus
- combination
- anode
Q3 | Which of the following is the passive element ?
- capacitance
- ideal current source
- ideal voltage source
- all of the above
Q4 | Which of the following is a bilateral element ?
- constant current source
- constant voltage source
- capacitance
- none of the above
Q5 | A closed path made by several branches of the network is known as
- branch
- loop
- circuit
- junction
Q6 | A linear resistor having 0 < R < °o is a
- current controlled resistor
- voltage controlled resistor
- both current controlled and voltage controlled resistor
- none of the above
Q7 | A star circuit has element of resistance R/2. The equivalent delta elements will be
- r/6
- fi?
- 2r
- 4r
Q8 | A delta circuit has each element of value R/2. The equivalent elements of star circuit with be
- rig
- r/3
- 2r
- 3r
Q9 | While calculating Rth in Thevenin's theorem and Norton equivalent
- all independent sources are made dead
- only current sources are made dead
- only voltage sources are made dead
- all voltage and current sources are made dead
Q10 | The number of independent equations to solve a network is equal to
- the number of chords
- the number of branches
- sum of the number of branches and chords
- sum of number of branches, chords and nodes
Q11 | The superposition theorem requires as many circuits to be solved as there are
- sources, nodes and meshes
- sources and nodes
- sources
- nodes
Q12 | Which of the following is a concern when using CMOS type devices?
- mechanical shock
- electrostatic discharge
- fan out
- under voltage
Q13 | Which of the following is not a solution to interface problems between CMOS and TTL?
- pull-up resistor
- pull-down resistor
- level-shifter
- buffer
Q14 | Which of the following is not a common logic family used today?
- rtl
- ecl
- ttl
- cmos
Q15 | The output current for a LOW output is called a(n)
- exit current.
- sink current.
- ground current.
- fan-out.
Q16 | A family of logic devices designed for extremely high speed applications is called
- nmos.
- ecl.
- pmos.
- ttl.
Q17 | Unused inputs on TTL, AND, and NAND gates
- degrade the gate\s noise immunity.
- if left open will have the same effect as high inputs.
- should be tied high.
- all of the above are correct.
Q18 | The lower transistor of a totem-pole output is OFF when the gate output is
- high.
- malfunctioning.
- low.
- over driven.
Q19 | The input transistor on a TTL circuit is unusual in that it has
- multiple bases.
- no collector.
- no base.
- multiple emitters.
Q20 | The difference between VOH and VIH voltages is known as
- input margin.
- noise margin.
- output differential.
- input level.
Q21 | The upper transistor of a totem-pole output is OFF when the gate output is
- logic 1.
- malfunctioning.
- high.
- low.
Q22 | The major advantage of TTL logic circuits over CMOS is
- lower propagation delay.
- the ability to output higher voltages.
- more modern design.
- very low power consumption
Q23 | The maximum current for a HIGH output on a standard TTL gate is
- -10 µa.
- -400 µa.
- -1 µa.
- -10 ma.
Q24 | The maximum current for a LOW output on a standard TTL gate is
- 16 µa.
- 40 ma.
- 100 µa.
- 16 ma.
Q25 | The major advantage of CMOS logic circuits over TTL is
- very low power consumption.
- the ability to produce several output voltage levels.
- lower propagation delay.
- much higher propagation delay.