Series Resonance Question & Answers May 18, 2023 By Wat Electrical This article lists 25 Series Resonance MCQs for engineering students. All the Series Resonance Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of Series Resonance. A condition where in a serial RLC circuit; inductive and capacitive reactance are equal is called series resonance. These reactance parameters nullify at a phase of 180 degrees since both reactance are the same. A series resonance circuit comprises passive components such as a resistor, capacitor, and inductor. A resonance circuit's characteristics are linear and dynamic with respect to frequency response. The inductive reactance of this circuit is given as wL; whereas capacitive reactance is given as 1/wC. The resonance frequency of this series RLC circuit is given as 1/ sqrt[LC]. The applications of series resonance circuits include radio, television, noise filters and also it can be used as a wave trap and also a tuning circuit. 1). A resonance based circuit comprises of _____ components? Resistor Capacitor Inductor All the above Hint 2). A resonance circuits characteristics is _____ with respect to frequency response? Linear Non-linear Dynamic Both a and c Hint 3). Which of the following is inductive reactance of series RLC circuit? wL 1/wL wC RLC Hint 4). Which of the following is equation of capacitive reactance? 1/wc RLC 1/wL WLC Hint 5). Which of the following is the relation between XL and XC of a series RLC circuit when circuit is said to be inductive? XL>XC XC>XL 1XC>XL XL>1/XC Hint 6). Which of the following is the relation between XL and XC of a series RLC circuit when circuit is said to be capacitive? XL>XC XC>XL 1XC>XL XL>1/XC Hint 7). Which of the following is the total circuit reactance of a RLC series circuit? XT = XL - XC XT = XC -XL XT= 1/XL Both a and b Hint 8). Which of the following is the total circuit impedance? Z = sqrt [ R2 + XT2] Z = 1/sqrt [ R2 + XT2] Z = sqrt [ R2 - XT2] Z = 1/ sqrt [ R2 - XT2] Hint 9). The curve of inductive reactance with respect to frequency is ? Straight Non-linear Linear Both b and c Hint 10). Reactance is expressed in terms of? Ohms Farads Henry Meters Hint 11). Inductance is expressed in terms of? Ohms Farads Henry Meters Hint 12). ____ is the term that defines the relation between circuit current and applied voltage being in phase? Series Resonance Parallel resonance Concurrent resonance Both a and b Hint Read more about Mutual Inductance . 13). Which of the following is the equation for series RLC resonance? XL =XC XL –XC=0 XL +XC=0 Both a and b Hint 14). Which of the following is the impedance formula of Series RLC resonance circuit? Z = srt [ R^2 + (XL – XC)^2] Z = 1/srt [ R^2 + (XL – XC)^2] Z = -1/srt [ R^2 + (XL – XC)^2] Z = srt [ R^2 + (XL XC)^2] Hint 15). Which of the following is current equation in a series resonance circuit? I = V/Zr I= V/R I= R/V I=VR Hint Series Resonance MCQs for Exams 16). When XL = XC then impedance is ____? Z is Minimum Reduce to resistance Z = R All the above Hint 17). Which of the following is the power equation of a resonance circuit? Pr = I2 Rr Pr = I2/ Rr Pr = - I2/Rr Pr = RR/I2 Hint 18). Which of the following are configuration of series resonance? RL LC RLC All the above Hint 19). Which of the following parameter is taken as reference in a phasor diagram of a RL series based circuit? Current Resistance Voltage Reactance Hint 20). Which of the following is the voltage drop in in a phasor diagram of a RL series based circuit? VR = IR VR = CR VR = LR CR=XL Hint Read more about RL Circuit 21). ____ is equal to applied voltage in a RL series based circuit? Vector sum of 2 voltages Vector sum of 2 resistance Vector sum of 2 reactance Both a and b Hint 22). Which of the following is the formula of power in a RL series based circuit? p=vi p=v/i p=i/v p=ir Hint 23). Which of the following is the phase angle of inductive and capacitive reactance of a series resonance circuit? 180 degrees 190 degrees 250 degrees 360 degrees Hint 24). Which is the formula of complex impedance in a series RLC circuit? jwL 1/wL j/wL -1/wL Hint 25). The value of Q value in a series resonance circuit depends on ___ factor? Resistance Inductance Capacitance Reactance Hint Time's up
