AC Circuit - R-C Circuit objective questions (mcq) and answers

31.  In a parallel R-C circuit, the current always ............the applied voltage

   A. Lags

   B. Leads

   C. Remains in phase with

   D. None of the above

32.  At very low frequencies a series R-C circuit behaves as almost purely............ circuit

   A. Resistive

   B. Inductive

   C. Capacitive

   D. None of the above

33.  An R-C series circuit is excited by a DC source. After its switching on

   A. The voltage across resistance R and capacitance are equal

   B. The voltage across resistance is zero

   C. The voltage across capacitance is zero

   D. The same of the voltage across R and C is always equal to the supply voltage

34.  A square wave is fed to an R-C circuit. Then

   A. Voltage across R is square and across C is not square

   B. Voltage across C is square and across R is not square

   C. Voltage across both R and C is square

   D. Voltage across both R and C is not square

35.  With the increase in applied frequency, the dielectric loss in a material will

   A. Increase

   B. Decrease

   C. Remain constant

   D. Become zero

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