Great Minds & Great Prizes – Challenge Yourself in the Quiz

How much do you know about physics? This quiz is about various aspects of the propagation of electromagnetic waves and underlying technical principles.

Test your knowledge and have a chance to receive one of the three great prizes:

1. WR-ToolRF Torque Wrench for SMA & RPSMA Plugs to handle coach connectors properly.
2. Design Kit WR-SMA Cable Connectors with different coax connectors to test and use.
3. WR-ToolRF Crimping Tool for RF Cable Connector.

Best thing is: You do not have to score the highest number to get one of the three prizes! Just take part in the quiz until the 15th of July 2023 and you might be the one who gets the prize. The selected participants will be informed on Monday, 17th of July via email.

The quiz was prepared by Distrelec and Würth Elektronik, and the data collected through respondents will be only used to select the participants of the quiz for the prize.

*For some hints in order to answer the questions, read our AppNote or check out the Würth Elektronik eiSos portfolio of RF coax connectors.

Great Minds from the past – Great Minds today. Volume Three: Heinrich Hertz

Heinrich Rudolf Hertz was a German physicist who was born 1857 in Hamburg and died early in 1894 in Bonn. In 1886, he was the first to generate and detect electromagnetic waves in experiments and is thus considered to be their discoverer. In his honor, the international unit for frequency was named Hertz (abbreviated with the unit symbol Hz).

Hertz came from a distinguished Hanseatic family. His father Gustav Ferdinand Hertz (1827-1914) held a doctorate in law, was a judge from 1877, and was senator and president of the Hamburg judicial administration from 1887 to 1904.

Hertz studied mathematics and physics at Technical University Munich. At the age of 23, Hertz earned his doctorate with a thesis on the rotation of metal spheres in a magnetic field at Friedrich-Wilhelms-University in Berlin and remained for two years as a research and lecture assistant to Hermann von Helmholtz, where he began to investigate the physical nature of cathode rays.

In 1886, Hertz was the first to succeed in experimentally generating and detecting free electromagnetic waves. On November 13, 1886, he succeeded in experimentally generating electromagnetic waves and transmitting them from a transmitter to a receiver.

 

Are you ready to start? If yes, click NEXT and good luck!

 

At which universities in Germany did Heinrich Hertz work as a lecturer/professor?

University Dresden

Friedrich-Wilhelms-University, Berlin

Technical University Munich

Christian-Albrechts-University Kiel

Technical University Karlsruhe

Technical University Hamburg

Rhineland Friedrich-Wilhelms-University, Bonn

Hint

Hertz confirmed the basic equations of electromagnetism, particularly the electromagnetic theory of light. Who is considered to be the originator of these fundamental equations?

Alexandre Edmond Becquerel

Hermann von Helmholtz

James Clerk Maxwell

Albert Einstein

Philipp Lenard

In which frequency range did Hertz's radio experiment take place?

Very low frequency (3-30 kHz)

Low frequency (30-300 kHz)

Medium frequency (0,3-3 MHz)

Very high frequency (30-300 MHz)

Ultra high frequency (0,3-3 GHz)

High frequency (3-30 MHz)

To which research organizations belong Heinrich-Hertz Institute?

Max-Planck society

Helmholtz Society

Fraunhofer Society

Leibniz Community

German Research Foundation (DFG)

Hint

What type of lines / connector types are typically used to transmit highest frequency signals?

Single-Pair-Ethernet

Ethernet

Coaxial

Circular

USB

Board-to-Board

D-Sub

Which types of RF connectors are offered by Würth Elektronik?

SMA connectors

SMB connectors

SMP connectors

BNC connectors

MCX connectors

MMCX connectors

UMRF connectors

Hint

Fill in the blank boxes with one of the following answers: signal – transmission – reflections – impedance – frequency – interfere – wavelength.

The of a in the cable is smaller, the higher the of the signal. If the wavelength is of the order of the cable length or smaller, can with the transmission. Reflections always occur where the of the transmission path changes. Therefore, for good of high frequencies, the impedance should have the same value over the entire distance.

What’s the most common specification for the frequency range of SMA-products within the WE portfolio?

DC to 1 GHz

DC to 4 GHz

DC to 6 GHz

DC to 12 GHz

DC to 18 GHz

Which are the smallest and most well-suited RF Coax connectors for space-constrained applications in the WE portfolio?

SMA connectors

SMB connectors

SMP connectors

MCX connectors

MMCX connectors

UMRF connectors

At the transition point between the coax connector and the printed circuit board, there is a change in impedance usually. What consequences it has on signal propagation?

Signal distortion

Signal smoothing

Attenuation of the desired signal

Signal amplification

Reflection of the user signal

Impedance Mismatch

Impedance Match

Hint

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Do you want to compete with someone you know? Send them this link: https://knowhow.distrelec.com/stem/great-minds-great-prizes-challenge-yourself-in-the-quiz/ that they can also take part in this quiz!

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Email

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The data you provide in the entry form will be used for the purpose of conducting and processing the competition. The data you provide enables us to determine whether you are eligible to participate and to determine and notify you in the event that you win. The processing of the personal data collected as part of the sweepstakes is carried out for the implementation and processing of the sweepstakes on the basis of Art. 6 (1) sentence 1 b) DSGVO (implementation of a contractual relationship) and by the existence of a legitimate interest pursuant to Art. 6 (1) sentence 1 f) DSGVO. The legitimate interest is to enable you to participate in the competition and, in the event of a win, to be able to send it to you.

Recipients
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