RCC Structures Design Online Test – Multiple Choice Questions and Answers 1. A 330 pF capacitor and a 220 pF capacitor are each connected across a 6 V dc source. The voltage across the 330 pF capacitor is 2V 4V 6V 8V 2. In a five-branch parallel circuit, there are 12 mA of current in each branch. If one of the branches opens, the current in each of the other four branches is 0 A 3 mA 12 mA 48 mA 3. When the voltage across a capacitor is tripled, the stored charge triples stays the same doubles is cut to one-third 4. A sudden increase in the total current into a parallel circuit may indicate an open resistor a drop in source voltage an increase in source voltage either a drop in source voltage or an open resistor 5. Of the following capacitors, which one has the highest dielectric constant? mica glass paper air 6. When the plate area of a capacitor increases, the capacitance is unaffected the capacitance increases the capacitance decreases the voltage it can withstand increases 7. A sine wave voltage is applied across a capacitor. When the frequency of the voltage is decreased, the current increases ceases remains constant decreases 8. A capacitor and a resistor are connected in series to a sine wave generator. The frequency is set so that the capacitive reactance is equal to the resistance and, thus, an equal amount of voltage appears across each component. If the frequency is increased VC> VR VR > VC VR and VC = 0 VR = VC 9. Which of the following capacitors is polarized? electrolytic plastic-film mica ceramic 10. When an additional resistor is connected across an existing parallel circuit, the total resistance increases by the value of the added resistor decreases by the value of the added resistor decreases remains the same Loading … Question 1 of 10
