# EE SHORT NOTES-A.C. FUNDAMENTALS 5

 81 The r.m.s. value of a half-wave rectified current is 100 A. Its value for full-wave rectification would be____ amperes. 141.4 [other wrong options are – 200, 200/π, 40/π, ]

 82 For the same peak value, which of the following wave has the least mean value ? Half wave rectified sine wave [other wrong options are – Triangular wave, Sine wave, Square wave, ]
 83 The time period of a sine wave is 1/50 seconds. Its frequency is 50 Hz [other wrong options are – 20 Hz, 30 Hz, 40 Hz, ]
 84 For the same peak value of voltage which wave form will have the least r.m.s. value ? Triangular wave [other wrong options are – Sine wave, Square wave, Full wave rectified sine wave, ]
 85 The series element of a band stop filter is Parallel combination of L and C [other wrong options are – Capacitive, Inductive, Series combination of L and C, ]
 86 Selectivities of different resonance circuits are compared in terms of their Band widths [other wrong options are – Impedances, Reactances, Frequencies, ]
 87 While drawing vector diagram for a series circuit the reference vector is Current [other wrong options are – Voltage, Power, Phase angle, ]
 88 Which of the following waves has the highest value of peak factor ‘? Half wave rectifier sine wave [other wrong options are – Square wave, Sine wave, Triangular wave, ]
 89 The ratio of active power to apparent power is known as ____ factor. Power [other wrong options are – Demand, Load, Form, ]
 90 Which of the following circuit component opposes the change in the circuit voltage Capacitance [other wrong options are – Inductance, Conductance, Resistance, ]
 91 Power factor of an inductive circuit is usually improved by connecting capacitor to it in Parallel [other wrong options are – Series, Either (A) or (B), None, ]
 92 For the same peak value which of the following wave will have the highest r.m.s. value ? Square wave [other wrong options are – Half wave rectified sine wave, Triangular wave, Sine wave, ]