DigiKey Tech Quiz

Test your electronics design IQ with the DigiKey Tech Quiz

Take the DigiKey Tech Quiz designed for electronics and embedded systems engineering professionals.
Score 100% using your work email ID, and win ₹500!

Who Should Take This Quiz?

This quiz is designed for engineering professionals who are deeply involved in circuits.

Electronics design and R&D engineers
Embedded systems engineers and firmware developers
Hardware, PCB, and system architects
Application engineers and technical leaders in OEMs, IDHs, R&D labs, and startups

If you regularly work with schematics, BOMs, design tools, and calculators, this quiz is for you.

How it works

Complete the quiz using your work email ID.
Answer all questions correctly.
If you score 100% and your profile is related to electronics or embedded systems engineering, you’ll receive a ₹500 Flipkart gift card by 19 Aug 2026.
Winners will be notified on their work email with instructions to claim the reward.

Don’t miss out

It takes just a few minutes to read the product pages, answer the questions, and submit the form.

Ready when you are!

Participation Closed

Answer the questions below. To assist you with finding the answer, the questions include a link to a video, schematic, or a calculator. Select the correct option for each.

CONTACT INFORMATION

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REFERENCE PRODUCTS TO HELP ANSWER THE QUIZ QUESTIONS

Provided are the DigiKey product pages for each of the following components. You can review their specifications to help answer the questions that follow.

DigiKey Product Number	Product Description
668-AS01508MR-LWC40-ND	SPEAKER 15MM 0.5W 8OHM 850HZ 88 dB
668-AS01708MR-LWC50-HT-ND	SPEAKER 17MM 0.8W 8OHM 950HZ 95 dB
668-AS02008MR-2-LWC30-ND	SPEAKER 20MM 1W 8OHM 670HZ 90 dB
668-AS04008MR-2-LWC80-ND	SPEAKER 40MM 2W 8OHM 400HZ 92 dB
668-AS05008MR-2-F-ND	SPEAKER 50MM 1W 8OHM 500HZ 84 dB
668-AS02808MS-LWC100-ND	SPEAKER 28MM 1W 8OHM 550HZ 90 dB
668-AS04008MR-22-WP-ND	SPEAKER 40MM 0.5W 8OHMS 520HZ 82 dB
668-AS05008MO-WP-HT-ND	SPEAKER 50MM 5W 8OHMS 280HZ 111 dB

QUIZ QUESTIONS

Q1. At 280 Hz, the PUI Audio AS05008MO-WP-HT has the lowest resonant frequency (Fs) in the components lineup provided. In electromagnetic speaker design, what does a lower resonant frequency (Fs) generally enable in speaker performance?

Q2. When a speaker is mounted in a sealed enclosure creating a speaker system, how does the system’s resonant frequency (Fc) differ from the speaker’s free-air resonant frequency (Fs)?

Q3. Visit the following PUI Audio speaker product pages on DigiKey and compare their Sound Pressure Level (SPL) ratings listed in the product descriptions:

668-AS01708MR-LWC50-HT-ND – Speaker 17 mm
668-AS04008MR-2-LWC80-ND – Speaker 40 mm
668-AS02808MS-LWC100-ND – Speaker 28 mm
668-AS05008MO-WP-HT-ND – Speaker 50 mm

Which of the above PUI Audio speakers would likely produce the loudest output when normalized to 1W dissipation and 1m distance?

Q4. Refer to the product page for the 668-AS04008MR-2-LWC80-ND on DigiKey. The speaker is rated at 2 W continuous power into an 8 Ω load. Using the Ohm's Law power relationship, what is the RMS voltage required to drive this speaker at its rated continuous power?

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About DigiKey

DigiKey, headquartered in Thief River Falls, Minn., USA, is recognized as a global leader and continuous innovator in the commerce distribution of electronic components and automation products worldwide. DigiKey provides more than 18 million components from over 3,000 quality name-brand manufacturers, with an industry-leading breadth and depth of products in stock and available for immediate shipment. DigiKey also supports engineers, designers, builders, and procurement professionals with digital solutions, frictionless interactions, and tools that help make their jobs more efficient. Additional information can be found at digikey.in and on Facebook, X, YouTube, Instagram, and LinkedIn.

About PUI Audio, Inc

Founded in 1972, PUI Audio, Inc provide a comprehensive line of high-quality audio, haptic, and sensor components and innovative custom solutions, by applying our unique design approach and world-class customer care. Corporate offices, product development, engineering, sales and customer service are located in Dayton, Ohio. Our growth and product innovation are the results of listening to our customers. With an extensive network of sales representatives, agents and distributors, we provide products and services throughout the world. When it needs to be informed across industries, PUI Audio ensures important information is heard, felt, or sensed clearly, quickly and efficiently. Additional information can be found on puiaudio.com and on linkedIn and Youtube.