Electronics questions This is a list of recently added questions about electronics. Play electronics quiz and see all the questions. What is the usual nominal voltage of an AAA battery?1.5V. An AAA battery is a standard size of dry cell battery commonly used in low-drain portable electronic devices, such as TV remote controls, MP3 players and digital cameras.Created by: Ninjaivery easy 80% 1.2V1.2V6791.5V1.5V44683.6V3.6V28212V12V150electrics riddles » What kind of an electromagnetic waves does the typical tv remote use to send signal?Infrared radiation. Early television remote controls used ultrasonic tones. Present-day remote controls are commonly consumer infrared devices which send digitally-coded pulses of infrared radiation to control functions such as power, volume, channels, etc.Created by: Ninjaieasy 75% radio wavesradio waves1809infrared radiationinfrared radiation7828ultravioletultraviolet448ultrasoundultrasound338TV riddles » What resistor should be connected to the 12 Volt battery with a current flow of 4 Amp?3 Ohm. According to Ohm's law, the resistance (R) of an object is defined as the ratio of voltage across it (V) to current through it (I) : R = V/I. R = 12/4 = 3.Created by: Ninjaiaverage 60% 48 Ohm48 Ohm2164 Ohm4 Ohm2813 Ohm3 Ohm103212 Ohm12 Ohm165physics riddles » What was the name of the first commercial car radio? Motorola. In 1930, Paul and Joseph Galvin together with William Lear developed the first car radio on the dashboard and called it "Motorola". The word "Motorola" meant "sound in motion". The first part pointed to the engine, the second part was the popular suffix "ola"Created by: Tschukahard 43% RadiolaRadiola72MotorolaMotorola172BlaupunktBlaupunkt108ElectrolaElectrola41technical riddles » John Bardeen, Walter Houser Brattain and William Bradford Shockley received the Nobel Prize in Physics in 1956 for the invention of:Transistor effect. The transistor heralded in the “Information Age” and paved the way for the development of almost every electronic device, from radios to computers to space shuttles. For their monumental “researches on semiconductors and their discovery of the transistor effect,"4 Bardeen, Shockley and Brattain were presented with the Nobel Prize in Physics in 1956.Created by: Tschukahard 44% dimmerdimmer765resistorresistor1009optical fiberoptical fiber763transistor effecttransistor effect2043Nobel prize riddles » In 1953, Samsung began producing its first product. What?Sugar. Samsung started out as a small trading company with forty employees located in Su-dong. Created by: Tschukahard 50% TelephonesTelephones104SugarSugar487Computer memoryComputer memory100Integrated circuitsIntegrated circuits276history of technics riddles » Which device converts electricity into acoustic energy?Headphones are a pair of small loudspeaker drivers worn on or around the head over a user's ears. They are electroacoustic transducers, which convert an electrical signal to a corresponding sound. Created by: Tschukahard 47% MicrophoneMicrophone1489HeadphoneHeadphone3775AmplifierAmplifier2316PreamplifierPreamplifier427technology riddles » Which device converts an acoustic wave into an electrical signal?Microphone. A microphone, colloquially nicknamed mic or mike is a transducer that converts sound into an electrical signal. Microphones typically need to be connected to a preamplifier before the signal can be recorded or reproduced.Created by: Tschukahard 56% HeadphonesHeadphones810LoudspeakerLoudspeaker951MicrophoneMicrophone4842AmplifierAmplifier1962technology riddles » Which type of transmission uses the shortest waves?Satellite TV. The Ku band is the portion of the electromagnetic spectrum in the microwave range of frequencies from 12 to 18 gigahertz (GHz). Ku band is primarily used for satellite communications, most notably for fixed and broadcast services, and for specific applications such as NASA's Tracking Data Relay Satellite used for both space shuttle and International Space Station Created by: Tschukavery hard 24% GSM telephonyGSM telephony662CB radioCB radio1471VHF radioVHF radio1107satellite TVsatellite TV1027technology riddles » What display resolution is called "Full HD"?1920 x 1080. There are currently four different labels: "HD ready", "HD TV", "HD ready 1080p", "HD TV 1080p". The logos are awarded to television equipment capable of certain features.Created by: Tschukaaverage 62% 1920 x 10201920 x 10201112820 x 20402820 x 2040721920 x 10801920 x 10804433820 x 30803820 x 308083computers riddles » Play electronics quiz and see all the questions.