Quiz Day Friday: Resistor Networks

Happy New Year and Happy Friday!

Thank you for attending our latest Quiz Day Fridays where we share quizzes created by Electro-Tech-Online community members including: 3vO,DerStrom, Ian Rogers, Pommie, Roman Black, Reload Ron, JimB, MrAl, and ericgibbs. Electro-Tech-Online is an electrical engineering membership forum where you can ask questions and get answers from your fellow engineers. Great place to be if you want to be surrounded by like minds. Check it out.

This week’s quiz is by a rather prolific member of Electro-Tech-Online, DerStrom, who also holds Nicola Tesla in justified high regard. Tesla had the…ahem…electrified ‘opportunity’ to work with Edison. Let’s leave it at that. (Or, let’s change patent laws but that’s another story…)

A member of ETO since 2010, DerStrom has much more than nearly 4,000 discussions to his credit on the community. DerStrom has written several articles and blogs including an excellent, now-14-part series on “Building a Dual-Resonant Solid-State Tesla Coil”.

DerStrom’s avatar is topped only by his profile signature: “I do not think there is any thrill that can go through the human heart like that felt by the inventor as he sees some creation of the brain unfolding to success… such emotions make a man forget food, sleep, friends, love, everything.” –Nikola Tesla

Check out DerStrom and our other Quiz Day Friday authors, as well as the discussions on Electro-Tech-Online — but only after you take their quizzes?

Quiz V1.0 on General Electronic and Electrical Engineering
Quiz V2.0 on Common Engineering Abbreviations
Quiz V3.0 Electronic and Electrical Engineering – Intermediate
Quiz V4.0 Computer History
Quiz V5.0 C Programming Language
Quiz V6.0 Electronics and Radio
Quiz V7.0 Electronics and Electrical
Quiz V8.0 Resistor and Zener Voltage Dividers

We list the questions below just to give you a heads-up, but you’ll find the complete quiz — with the multiple choice options — HERE

Quiz V9.0 Resistor Networks

1. You want to run a 2.2 volt LED from a 12 volt supply…If the LED uses a MAXIMUM of 20 milliamps of current, what value of series resistance is required so as not to burn out the LED?
2. Using the setup described in Q1, what is the closest 10% common resistor value needed in the circuit?
3. If a 60 hertz square wave is fed into a circuit that flashes an LED once every cycle, how many times does the LED flash in 2.8 seconds?
4. There are two resistors in series, connected to an 8 volt power source. One has a color code of brown-black-brown-gold, and the other is missing the bands. If the circuit draws 25mA, what is the resistance of the unknown resistor?
5. When you have four identical capacitors wired in parallel…?
6. What is an inductor?
7. Kirchoff’s voltage law states that…?
8. If a 4.7k resistor is connected to a 12 volt supply, what is the power dissipated by the resistor?
9. What is the RMS voltage of a source that produces a sine wave with a peak-to-peak voltage of 12 volts?
10. What is the total resistance between point A and B in the circuit shown below?

Think you know the answers? Click here take the quiz!

Return for our Final Friday next week…