Electronics and Electrical Engineering Quizzes

Read the latest electronics engineering product design quizzes.

TAGS: DC

The communications and computer industries initially used isolated converters in electronic industrial equipment, but as FPGAs required lower and lower voltages at higher currents, their power architecture changed. Now the...
DC/DC converters are not protected against reverse polarity connection. Swapping the VIN+ and VIN- terminals will almost certainly cause immediate failure, so care must be taken to ensure that any...
A group of engineers are tasked to improve the design of a Monolithic Ferrite Bead for an Automotive Electrical Component company that wishes to transition into large current transmission...
What are the five basic transformer-less topologies for non-isolated DC/DC converters?
Upon configuring a PMMC (Permanent Magnet Moving Coil) as an ammeter, a shunt resistor is connected to it, to adjust the range of measurement. The value of the shunt resistor...
Assuming that the boost converter shown is operating under Continuous Conduction Mode (CCM) , solve for the capacitance and inductance given the following specifications: Vs = 3V, Vo= 5V, R=10Ω...
In a laboratory experiment about electromechanical instruments, the students were given with this problem : An engineer has a PMMC instrument used as a DC ammeter. He wanted to calculate...
A 250 V series motor draws a current of 40 A. The armature resistance is 0.15 Ω and the field resistance is 0.05 Ω. Determine the maximum efficiency of the motor.
A 22.38 kW, 440-V, 4-pole wave-wound d.c. shunt motor has 840 armature conductors and 140 commutator segments. Its full-load efficiency is 88% and the shunt field current is 1.8 A...
Determine the quiescent levels of and for the network shown in the figure.