R.M.S value of the periodic square waveform of amplitude 72 V.

Related MCQs

• Calculate the average value of the sinusoidal waveform x(t)=848sin(1.65πt+2π÷0.68).
• Calculate the phase angle of the sinusoidal waveform z(t)=78sin(456πt+2π÷78).
• Calculate the time period of the waveform v(t)=12sin(8πt+8π÷15)+144sin(2πt+π÷6)+ 445sin(πt+7π÷6).
• Calculate the frequency of the rotor side of the IM if the value of slip is 0.34 and the supply frequency is 70 Hz.
• Calculate the value of the angular acceleration of the Heavy duty crane using the given data: J = 5 kg-m2, load torque = 30 N-m, motor torque = 80 N-m.
• Calculate the value of Voltage ripple factor if the Form factor is 1.1.
• Calculate the value of THD if the
• A 100 hp, 250 V, 350 A shunt dc motor with an armature resistance of 0.05 ohms. To limit maximum starting current to twice the rated of its value, what will be the number of stages of starting resistances?
• full load efficiency of 85% has armature resistance of 0.25 ohms. Calculate the value of starting resistance in ohms for a current 1.5 times of the full load current.
• The slope of the V-I curve is 5°. Calculate the value of resistance. Assume the relationship between voltage and current is a straight line.