⚡ Electrical Engineering Solved MCQs with Answers

Practice 757 approved ⚡ Electrical Engineering questions with verified answers from the 🛠️ Engineering Essentials subject for Pakistan exams.

757 solved MCQs

The distance between two charges reduced to half, then coulombs force would become ______?Answer: Four Times Which one of the following statement is not correct regarding electric and magnetic field?Answer: When current pass through a straight wire, magnetic field line is also produced in straight line. A piece of thin wire that is used in an electric circuit to protect electrical appliances is called _____?Answer: Fuse The path which is followed by flow of electron is called ____?Answer: Circuit The SI unit of electric power is?Answer: Watt Current can easily pass through ________?Answer: Steel paper clip The rate of flow of charge at certain point is called ____?Answer: Electric Current The gate whose output is 0 when all the inputs are 1 is called _____ gate.Answer: NAND What is the power generation capacity of the Karachi nuclear power plant?Answer: 2,300 MW ________ is a flow of free electrons?Answer: Current AND, OR, XOR, NOT, NAND, NOR are which type of gate?Answer: Logic gate In dark, Light Dependent Resistor has?Answer: High resistance Which one of the following kinds of material has the lowest permeability?Answer: A diamagnetic material In a JK flipflop, what happens if both J and K inputs are held high while the clock pulse is applied?Answer: The output toggles In an intrinsic semiconductor, the number of free electrons?Answer: Equals the number of holes If frequency of modulated wave is less than frequency of carrier wave, then input signal is?Answer: Negative Which of the following is not a unit of flux?Answer: Tesla Substances which have permeability less than the permeability of free space are known as?Answer: Diamagnetic The main constituent of Permalloy is?Answer: Nickel-Iron Which is an alteration in the observed frequency of a sound due to motion of either the source or the observer?Answer: Doppler effect The left hand rule correlates to?Answer: Current, magnetic field and direction of force on a conductor The De Broglie wave group associated with a body in motion travels with the velocity _____?Answer: With which body is moving The SI unit of magnetic flux is?Answer: Weber What does AVPU stand for in first aid?Answer: Alertness, Verbal, Pain, Unresponsive In generators, the rate of change of flux linkage is maximum when the coil is moving through the?Answer: Horizontal position For a straight wire, induced current depends upon?Answer: None of the above Phenomena in which signal transmitted in one circuit creates undesired effect in other circuit is known as?Answer: Cross linking The current through an inductance follows ______?Answer: An exponential growth Which of the following expressions represents the distributive law of Boolean algebra?Answer: A(B + C) = AB + AC PIC stands for ______?Answer: Pakistan Information Commission