Month: March 2019

Q.196 Inductance L opposes changing in current during _____     A. stating interval     B. transient interval     C. normal     D. any of the above Ans.: B Q.197 apparent power is defined as the     A. the product of Read More …

Q.181 Consider a RL series circuit, the current ____     A. lags the applied voltage by 0° to 180°     B. lags the applied voltage by 0° to 90°     C. leads the applied voltage by 0° to 90°     Read More …

Q.166 The reactance offered by a pure capacitor to the direct current or voltage is ___     A. finite value     B. infinite value     C. unity     D. not defined Ans.: B Q.167 Capacitor is equivalent to an open Read More …

Q.151 The impedance of purely resistive circuit is given by in polar form ___and rectangular form__.     A. Z = R and Z = RΩ =(R+j0)Ω     B. Z = R ∠ 0º and Z = RΩ =(R+jX)Ω     C. Read More …

Q.136 To draw phasor diagram of a.c circuit consists of R, L, C. which of the following is taken as reference value?     A. voltage value     B. current value     C. power     D. depend upon circuit parameter like Read More …

Q.121 All a.c circuits are made up of combination of _____.     A. Resistance R     B. Capacitance C     C. Inductance L     D. All of the above Ans.: D Q.122 What is the phase difference if a.c circuit Read More …