a) A line current is maximum b) The total impedance is maximum c) The total impedance is maximum d) The inductive branch current is maximum Ans: (c)
a) Series resonance needs a high-resistance source for sharp rise in current b) Series resonance needs a low-resistance source for sharp rise in current c) Parallel resonance needs a low-resistance source for a sharp increase in impedance d) Parallel resonance needs a low-resistance source for a sharp rise in line current Ans: (b)
a) Current is minimum b) Voltage across C is minimum c) Impedance is maximum d) Current is maximum Ans: (d)
a) Low resistance b) High resistance c) Low permeability d) High hysteresis Ans: (b)
a) High resonant frequency b) Low resonant frequency c) High Q d) Low a.c. resistance Ans: ()
a) 0.002 b) 20 c) 200 d) 500 Ans: ()
a) Static change b) Steady magnetic field c) Varying magnetic field d) Stray capacitance Ans: ()
a) 10 ohms b) 160 ohms c) 100 ohms d) 1000 ohms Ans: (c)
a) 500 ohms b) 750 ohms c) 637 ohms d) 377 ohms Ans: (d)
a) 0.02 b) 0.002 c) 0.2 d) 0.0002 Ans: (d)
a) True b) False Ans: (a)
a) √LC b) √(L/C) c) √(1/LC) d) 1/√LC Ans: (d)
a) Maxwell’s First Law b) Maxwell’s Second Law c) Gauss’s Law d) Coulomb’s Square Law Ans: (c)
a) Electromotive force V b) Displacement current D c) Electric intensity d) Electric displacement Ans: (c)
a) ∂p/∂t = div i b) curl H = 𝒊 c) div D = P d) div i = 0 Ans: (a)