Question FBQ1 : Electrons are the minority carriers in ____semiconductors.
Question FBQ2 : A p-type semiconductor contains holes and negative ions
Question FBQ3 : Depletion layer is caused by _____.
Question FBQ4 : The reverse current in a ____is usually very small.
Question FBQ5 : The ideal current voltage source has zero output impedance and ………………… impedance
Answer: zero input
Question FBQ6 : There are two non- abstract active circuit elements and both of them are__.
Question FBQ7 : When voltage changes across its terminals, capacitance produces a current which is proportional to the rate of_______.
Answer: voltage change
Question FBQ8 : If you make a current flow through an inductor, it produces a magnetic flux which is proportional to the rate of ____.
Answer: current change
Question FBQ9 : A magnetic field is set up when a current flows through inductance which creates a magnetic force which is detectable with a magnetic _____.
Question FBQ10 : _______is the unit of inductance.
Question FBQ11 : _______analysis is facilitated by the introduction of two hypothetical elements called nullator and the norrator.
Question FBQ12 : _______ theorem states that any combination of voltage sources, current sources and resistors with two terminals is electrically equivalent to a single voltage and a single resistor.
Question FBQ13 : _______in the equations for the impedance of inductors and capacitors indicate that the voltage across a capacitor lags the current through it by a phase of 2.
Answer: phase angles
Question FBQ14 : Ideal inductors and capacitors have a purely imaginary reactive ____.
Question FBQ15 : In vacuum tubes, electrons travel through ___ and not through a conducting material
Question FBQ16 : A component with a finite reactance induces a phase shift between the voltage across it and the____ through it.
Question FBQ17 : Circuit solutions involving mixed source are often simplified by a source_____.
Question FBQ18 : A current source produces current in a conductor which is related to ____.
Answer: electric charge
Question FBQ19 : _______theorem is important in electrical network analysis and synthesis.
Answer: Fosters reactance
Question FBQ20 : A series LC circuit has an impedance that is the sum of the impedance of an inductor and _____.
Question FBQ21 : Miller theorem refers to the process of creating equivalent _________.
Question FBQ22 : _______theorem implies that an impedance elements is supplied by two arbitrary voltage sources that are connected in series through the common grounds
Question FBQ23 : Maximum power transfer is not synonymous with maximum ____________
Question FBQ24 : The dual Miller theorem refers to impedance supplied by the two connected in parallel ____________ sources.
Question FBQ25 : Both Millers theorems are based on the two _________ circuit laws
Question FBQ26 : Resistors are circuit elements that impede the passage of electrical charges in agreement with ____.
Answer: Ohms law
Question FBQ27 : _______theorem also called the parallel generators theorem.
Question FBQ28 : Ohms and Kirchhoffs laws serve as the basic which __________ theorem is derived.
Question FBQ29 : The total equivalent conductance of a super node is the sum of the conductance of each branch according to _____theorem.
Question FBQ30 : _______theorem as an extension of Thevinins’s theorem .
Question FBQ31 : _______states that any collection of voltage sources, current sources, and resistors with two terminals is electrically equivalent to an ideal current source in parallel with a single resistor
Question FBQ32 : Avalanche in diode occurs at ______voltage
Question FBQ33 : The potential barrier of a silicon diode is _____.
Answer: 0.7 V
Question FBQ34 : The reverse saturation _____in a Silicon Diode is lower than that of Germanium diode.
Question FBQ35 : Most of the energy distribution theorems and extremum principles in network theory can be derived from _____ theorem
Question FBQ36 : _______theorems gives a simple relation between magnitudes that satisfy the Kirchhoff`s laws of electrical circuit theory.
Question FBQ37 : Any black box containing only voltage sources, current sources, and other resistors can be converted to a Thevenin equivalent circuit comprising exactly one voltage source and _____.
Answer: one resistor
Question FBQ38 : The simplest vacuum tubes have a filament called the ______.
Question FBQ39 : _______ needs a considerable temperature differential between the hot cathode and the cold anode
Answer: vacuum tube
Question FBQ40 : _______ is a material with electrical conductivity due to electron flow which is intermediate in magnitude between a conductor and insulator.
Question FBQ41 : If a control grid is added between the cathode and the anode of the vacuum tube, it is called a _____.
Question FBQ42 : _______ is a voltage controlled in that a voltage applied as an input can be used to control the flow of electrons between the cathode and the anode.
Question FBQ43 : The development of the thermionic diode and the triode led to great improvement in the telecommunications technology, particularly the birth of ___.
Answer: broadcast radio
Question FBQ44 : The non linear characteristic of the triode caused harmonic distortions at low volumes in early vacuum tube ____ amplifier.
Question FBQ45 : The process of adding controlled impurities to a semiconductor is known as ____.
Question FBQ46 : _______ tube were specifically designed for demodulation of synchronous signals of colour signals in colour television receivers.
Answer: sheet beam
Question FBQ47 : Zener diode can be described as a device with ___ voltage.
Question FBQ48 : The diode current is large for ____bias.
Question FBQ49 : The terminals of abstract active element possesses input ports and ____ ports.
Question FBQ50 : A Diode is a _____ device
Question MCQ1 : The following are passive circuit element except _____.
Question MCQ2 : The following are the categories of the single circuit element except ____.
Answer: passive abstract source
Question MCQ3 : Circuit analysis is facilitated by the introduction of the hypothetical elements called ____.
Answer: Nullator and Norrator
Question MCQ4 : An intrinsic semiconductor at room temperature has ____.
Answer: A few free electrons and holes
Question MCQ5 : Which of these theorems is frequently called “the parallel generator theorem”.
Answer: Millman's theorem
Question MCQ6 : ______ converters were generally used for frequency conversion in super heterodyne receivers in favour of a combination of a triode.
Question MCQ7 : __________ vacuum tubes use a specially designed vacuum tube diode with a rotating anode to dissipate large amounts of heat developed during operation
Answer: Medical radiographic
Question MCQ8 : ______ vacuum tube is a special purpose tube filled with low - pressure gas or mercury, some of which vaporizes.
Question MCQ9 : ________ is extremely specialized tubes which is used for extremely precise, rapid high - voltage switching.
Question MCQ10 : At room temperature, an intrinsic semiconductor has some holes in it due to ___.
Answer: thermal energy
Question MCQ11 : _________ replacement represented a major cost of operation for early radio receiver users.
Question MCQ12 : The discovery of the Edison effect led to the development of _______
Answer: Vacuum tube
Question MCQ13 : In vacuum tubes, electrons travel through vacuum and not through ________ material.
Question MCQ14 : some vacuum tubes are filled with gas under low _________
Question MCQ15 : Heat generated in vacuum tubes are mainly from the ________
Question MCQ16 : ________ Materials are the foundation of modern electronics
Answer: semi conductor
Question MCQ17 : ___________ is a material with electrical conductivity due to electron flow which is intermediate in magnitude between that of a conductor and an insulator
Question MCQ18 : Semiconductor materials are insulators at absolute zero _______
Question MCQ19 : In a metallic conduction, current is carried by the flow of ________
Question MCQ20 : The number of holes in an intrinsic semiconductor is ___.
Answer: equal to number of electron
Question MCQ21 : The free electron energy being the energy required for an electron to escape entirely from the ________
Question MCQ22 : The process of adding controlled impurities to a semiconductor is known as _______
Question MCQ23 : usually the thermal energy available at room temperature is sufficient to ionize most of the _________
Question MCQ24 : The P -N junction possesses some properties which have useful applications in modern _______
Question MCQ25 : The forward bias and the reverse bias properties of the P-n junction imply that it can be used as a ________
Question MCQ26 : _______ is one of the simplest semiconductor devices.
Question MCQ27 : _______ has the characteristics of passing current in one direction only
Question MCQ28 : If the diode is reverse biased, only the leakage current of the intrinsic semiconductor ________
Question MCQ29 : _________ the voltage well beyond 0.7 Volt in silicon diodes may result in high enough current to destroy the diode
Question MCQ30 : Transistors can generally be classified into ________
Question MCQ31 : _________ is a semiconductor device used to amplify and switch electronic signals
Question MCQ32 : ________ are commonly used as electronic switches for both high power applications and low power application such as gates
Question MCQ33 : Holes act as ___.
Answer: positive charges
Question MCQ34 : An LC circuit can store electrical energy vibrating at its resonant _________
Question MCQ35 : To produce P-type semiconductors, we need to add ____.
Answer: trivalent impurity
Question MCQ36 : The resonance effect occurs when inductive and capacitive reactances are equal to absolute __________
Question MCQ37 : The total impedance is given by the sum of the inductive and _______
Question MCQ38 : A series resonant circuit provides __________ magnification
Question MCQ39 : A parallel resonant circuit provides ________ magnification
Question MCQ40 : Which of the following circuit elements can be described as unidirectional
Question MCQ41 : Due to high impedance, the gain of amplifier is a maximum at resonant---------
Question MCQ42 : Passive filters are based on combination of the following except ______.
Question MCQ43 : ______ element filters are usually constructed as a ladder network.
Question MCQ44 : ______ attenuators in circuits are used to lower voltage, dissipate power, and to improve impedance matching.
Question MCQ45 : Basic circuits used in attenuators are T pads and ____.
Answer: pi pads
Question MCQ46 : ______ converts alternating current at one voltage to the same waveform at another voltage.
Question MCQ47 : _____ are sometimes used to match the impedances of circuits with different impedances.
Question MCQ48 : _____ impedance matches are easiest to design and can be achieved with a simple L pad consisting of only two resistors.
Question MCQ49 : A current source which generates a current based on another voltage and which output current is related to its input voltage by a gain factor is known as a
Answer: None of the options
Question MCQ50 : ___ is a circuit element which produces a voltage across its terminals which is proportional to the current which flows through it.