40 TOP RESISTANCE and POWER Online Test – Questions and Answers 1. How is power dissipated in a resistor? by heat by voltage by resistance by current 2. A good fuse will have: a high resistance a medium resistance zero ohms resistance an infinite resistance 3. For P = V2/R, a decrease in resistance should produce: a decrease in power an increase in ohms an increase in power a decrease in current 4. What property does an incandescent lamp possess? cold resistance hot resistance both cold and hot resistance ballast resistance 5. Good insulators: have a small breakdown voltage have a large dielectric strength have few electrons in their outer shells have many electrons in the nucleus 6. Wirewound resistors are usually used in circuits that have: negative temperature coefficients high voltage low power high current 7. Resistance in a circuit is: opposition to voltage opposition to current the same as current the same as voltage 8. One ampere of current flowing through one ohm of resistance is equal to: 1 Btu 1 horsepower 1 joule 1 watt 9. The unit designator for resistance value is the: ohm volt ampere watt 10. One advantage of a carbon film resistor over a carbon composition resistor is: smaller size higher wattage poor tolerance less circuit noise Loading … Question 1 of 10
