183. In a series resonant circuit the voltage acrossthe circuit is the same as the voltage across

A. inductance

B. capacitance

C. resistance

D. none of the above

184. The value of operator j2 is equal to

A. zero

B.+I

C.-1

D. ,,/=7

185. A series R-L-C circuit draws current at leading power factor at

A. more than resonant frequency

B. less than resonant frequency

C. resonant frequency

D. none of the above

186. For a L-C parallel circuit at resonance, all the statements given below are correct except

A. the line current is maximum at resonance

B. thebranch currents at resonance are equal

C. the angle between the branch currents is 1800 at resonance

D. the admittance is minimum at resonance

187. In a series R-L-C circuit, the voltage across inductance will be maximum

A. at resonance frequency

B. just before resonant frequency

C. just after resonant frequency

D. none of the above

188. Ina series R-L-C circuit at resonance

A. coLC = 1

B. coL2C2 = 1

C. to2LC = 1

D. co2L2C = 1

189. The ability of a resonant circuit to discriminate between one particular frequency and all others is called its

A. impedance

B. selectivity

C. conductance

D. none of the above

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