UPPCL AE 2019: Technical Quiz 13 (App update required to attempt this test)

Design an SOP circuit to detect the Decimal numbers 0,2,4,6 and 8 in a 4-bit 5211 BCD code input.

Consider the electrical network shown below

Determine the value of R so that current through resister is zero

In the circuit the value of ix is

If a unit step current is passed through a capacitor what will be the voltage across the capacitor?

For the given circuit, what is the range of firing angle for which, output voltage is not controlled.

The maximum junction temperature of a transistor is 150°C and the ambient temperature is 25°C. If the total thermal impedance is 5°C/W. What is the maximum power dissipation?

The output voltage of a single-phase full bridge inverter is controlled by using single pulse width modulation technique. It is found that fundamental component of RMS output voltage is 70% of DC input voltage, then the pulse with angle is

The coils of wattmeter have resistance 0.01Ω and 1000Ω (their inductances may be neglected). The wattmeter is connected as shown in fig. to measure the power consumed by a load, which draws 25 A at power factor 0.8 .The voltage across the load terminals is 30 V. The percentage error in the wattmeter reading is ___.

A PMMC instrument is used to measure the current through resistance Rs of a half ware rectifier circuit. It the input voltage to half ware rectifier is 140V rms & the meter resistance in 180Ω. What will be reading of PMMC ammeter of the resistance Rs = 65 Ω assuming the diode is ideal.

Find the rms and average values, of the wave form shown in the figure :