Electronic Principles — Part 2 MCQs with Explanations

The amount of current flow through each branch of a parallel circuit can be different, depending on the resistance of each branch part and the amount of voltage applied to it is the correct answer to “Which one of the following statements is true for current flowing in a parallel circuit”. This question is standard in competitive examination syllabi for Electronic Principles.

n-type is the correct answer to “Holes are the minority carriers in which type of semiconductor”. This question is standard in competitive examination syllabi for Electronic Principles.

multiplies the value of inductance by four is the correct answer to “Doubling the number of turns of wire in an inductor:”. This question is standard in competitive examination syllabi for Electronic Principles.

changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing is the correct answer to “A farad is defined as the amount of capacitance necessary for:”. This question is standard in competitive examination syllabi for Electronic Principles.

1590 Ohm is the correct answer to “What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz”. This question is standard in competitive examination syllabi for Electronic Principles.

24 V is the correct answer to “A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding”. This question is standard in competitive examination syllabi for Electronic Principles.

The total current is equal to the sum of the currents for the resistance and capacitance is the correct answer to “Which one of the following statements is true for the currents in a parallel RC circuit”. This question is standard in competitive examination syllabi for Electronic Principles.

The same current flows through every part of a series circuit is the correct answer to “Which one of the following statements is true for current flowing in a series circuit”. This question is standard in competitive examination syllabi for Electronic Principles.

equal to the sum of the individual inductance values is the correct answer to “The total inductance of a series inductor circuit is:”. This question is standard in competitive examination syllabi for Electronic Principles.

Linear is the correct answer to “When the graph of current versus voltage is a straight line, the device is referred to as”. This question is standard in competitive examination syllabi for Electronic Principles.

The actual frequency of a sine waveform is 1.41 times the working frequency is the correct answer to “Which one of the following statements most accurately applies to the frequency of a waveform”. This question is standard in competitive examination syllabi for Electronic Principles.

Recombination is the correct answer to “The merging of a free electron and a hole is called”. This question is standard in competitive examination syllabi for Electronic Principles.

the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second is the correct answer to “One henry of inductance is defined as:”. This question is standard in competitive examination syllabi for Electronic Principles.

ampere is the correct answer to “The basic unit of measurement for current is the:”. This question is standard in competitive examination syllabi for Electronic Principles.

The voltage remains at one polarity but changes value periodically is the correct answer to “Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage”. This question is standard in competitive examination syllabi for Electronic Principles.

An atom that contains more electrons than protons is the correct answer to “What is a negative ion”. This question is standard in competitive examination syllabi for Electronic Principles.

down is the correct answer to “In a transistor operates at the middle of the load line, an increase in the base resistance will move the Q point”. This question is standard in competitive examination syllabi for Electronic Principles.

Option "Trie force that causes electrons to flow" is the correct answer for this question under Electronic Principles.

0.707 is the correct answer to “What is the turns ratio for the transformer specified in the above question”. This question is standard in competitive examination syllabi for Electronic Principles.

is minimum at the resonant frequency is the correct answer to “The total impedance of a series RLC circuit:”. This question is standard in competitive examination syllabi for Electronic Principles.

from negative to positive is the correct answer to “The direction of electron current flow is:”. This question is standard in competitive examination syllabi for Electronic Principles.

piezoelectric device is the correct answer to “A device that converts mechanical pressure to electrical energy is called a:”. This question is standard in competitive examination syllabi for Electronic Principles.

The voltage always has the same amplitude and phase for every part of the circuit is the correct answer to “Which one of the following statements is true for the voltage in a parallel RC circuit”. This question is standard in competitive examination syllabi for Electronic Principles.

Load resistance is the correct answer to “The Thevenin resistance is equal in value to the”. This question is standard in competitive examination syllabi for Electronic Principles.

oscillators is the correct answer to “Most AC power is obtained from:”. This question is standard in competitive examination syllabi for Electronic Principles.

increasing the area of the plates is the correct answer to “The value of a capacitor can be made larger by:”. This question is standard in competitive examination syllabi for Electronic Principles.

0.5 is the correct answer to “The primary impedance of a transformer is 60 ohm and the secondary impedance is 120 ohm. What is the impedance ratio”. This question is standard in competitive examination syllabi for Electronic Principles.

50 Ohm or more is the correct answer to “Suppose a voltage source has an ideal voltage of 12V and an internal resistance of 0.5W. For what values of load resistance will the voltage source appear stiff”. This question is standard in competitive examination syllabi for Electronic Principles.

Counterclockwise is the correct answer to “Electron current is flowing through a conductor in a direction you might describe as straight into this page. What is the direction of the resulting magnetic field”. This question is standard in competitive examination syllabi for Electronic Principles.

Current flowing through a conductor generates a magnetic field is the correct answer to “Which one of the following principles best describes the basic operation of an electromagnet”. This question is standard in competitive examination syllabi for Electronic Principles.

14.8 µA is the correct answer to “The transistor has a collector current of 2 mA. If the current gain is 135, what is the base current”. This question is standard in competitive examination syllabi for Electronic Principles.

their waveforms cross through zero and reach positive and negative peaks at the same time is the correct answer to “Current and voltage are said to be in phase when:”. This question is standard in competitive examination syllabi for Electronic Principles.

Crystal is the correct answer to “Silicon atoms combine into an orderly pattern called a”. This question is standard in competitive examination syllabi for Electronic Principles.

armature is the correct answer to “The rotating coil of wire in an electric motor is called the:”. This question is standard in competitive examination syllabi for Electronic Principles.

that would be attracted to the earth's north magnetic pole is the correct answer to “The north pole of a magnet is the one:”. This question is standard in competitive examination syllabi for Electronic Principles.

90 Ohm - 110 ohm is the correct answer to “A resistor has a rated value of 100 ohm and a tolerance of 10%. What is its minimum and maximum allowable resistance value”. This question is standard in competitive examination syllabi for Electronic Principles.

inductive reactance is equal to the capacitive reactance is the correct answer to “When a parallel RLC circuit is operating at its resonant frequency:”. This question is standard in competitive examination syllabi for Electronic Principles.

Reverse-biased is the correct answer to “For normal operation of the transistor, the collector diode has to be”. This question is standard in competitive examination syllabi for Electronic Principles.

Primary voltage is the correct answer to “In a step-down transformer, which is larger”. This question is standard in competitive examination syllabi for Electronic Principles.

0.7V is the correct answer to “What is the barrier potential of a silicon diode at room temperature”. This question is standard in competitive examination syllabi for Electronic Principles.