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Most viral Electronics questions on Quora

Ranked by real engagement we track — views, upvotes, comments and shares per question. Updated continuously.

163Questions tracked

5.9MTotal views

41.5KTotal upvotes

752.7KVirality score

1 Why are Duracell batteries such rubbish?

My story of failed Costco Kirkland Signature batteries made by Duracell, and Duracell’s response. I purchased a twin blister pack of 48 Costco AAA Kirkland a…

🔥 86K 👁 681.8K ⬆ 4.4K 💬 405 🔄 19 · Anonymous on Quora

2 What happens when I hook a 12v battery to a 3.7v battery in parallel?

I'm assuming you are considering connecting these batteries with the same polarity: positive to positive, negative to negative. Then current will flow throug…

🔥 44.6K 👁 436.6K ⬆ 124 💬 45 🔄 3 · Anonymous on Quora

3 Why should one avoid right angles when drawing PCB traces?

There are two reasons. One is historically right angles make an etch trap where the etchant works too hard and undercuts the inside corner making the trace t…

🔥 39.1K 👁 182.3K ⬆ 5.9K 💬 139 🔄 67 · Anonymous on Quora

4 How long should I wait to turn my MacBook Pro on after getting it wet? The laptop ports (USB, etc.) were sitting in some water in my bag. I pulled the laptop out & drained some water out before holding it to a fan for ~10min. What should I do now?

Please ignore all the people telling you to put it in rice or even those telling you to let it dry out. Let me explain what your next steps are and why. Firs…

🔥 38K 👁 346.6K ⬆ 912 💬 59 🔄 1 · Anonymous on Quora

5 Since mineral oil is non-conductive, why does no one create a CPU or PC cooling system with it?

before you ask why does no one create a cooling system with it.. you should probably as IF anyone has.That liquid.. mineral oil.People have fun with it, putt…

🔥 37.4K 👁 264K ⬆ 3K 💬 149 🔄 24 · Anonymous on Quora

6 Does an entire computer chip get rendered useless if just one of its billions of transistors gets damaged or placed incorrectly?

Ironically, the majority of CPU/GPU chips produced are dies that have flaws. And yes, the flawed sections of the chip are useless. Have you heard of the Ryze…

🔥 27.8K 👁 208.5K ⬆ 2.1K 💬 44 🔄 13 · Anonymous on Quora

7 What is a thyristor?

I take this as two questions: (1) what it does, and (2) how it works. 1. What It Does: The standard diagram for a thyristor isAs indicated by the similarity…

🔥 27.2K 👁 250.7K ⬆ 537 💬 35 🔄 8 · Anonymous on Quora

8 Are Elbrus Russian chips good and reliable? Why aren't there any ELBRUS computer boards being sold on the market?

This is a modern Elbrus monoblock. You won't buy this on western market for several reasons. First, its primary user is Russian government who don't trust we…

🔥 22.9K 👁 164.5K ⬆ 1.6K 💬 154 🔄 5 · Pavel Aseev on Quora

9 Will a microwave break if you turn it on without food in it?

Yes. To paraphrase Humphrey Bogart,“If you don’t put food in that oven, you’ll regret it. Maybe not tonight or tomorrow, but soon, and until the next Labor D…

🔥 20.1K 👁 135.5K ⬆ 2K 💬 51 🔄 5 · Anonymous on Quora

10 How can you get your car radio to work without an antenna?

Radio physics is interesting. Any radio, car, or boat, or airplane, or home or even in your pocket needs an antenna of some type. When AM radio was the thing…

🔥 14.9K 👁 88.2K ⬆ 1.8K 💬 52 🔄 9 · Anonymous on Quora

11 What do I do? Water got in my touchpad (and some apple juice), and it has dried out by now. Now when I try to left-click, it’s a right-click. Tapping still works. My mouse acts weirdly. That’s because water got in my touchpad. How can this be fixed?

As a repair tech I see this often. Customers spill all sorts and just think they can wait for it to dry. However they are shocked to see that once the water…

🔥 12.9K 👁 119.1K ⬆ 272 💬 13 🔄 2 · Anonymous on Quora

12 What is a carbon resistor?

Back in the days when electronics was young, they took a quantity of powdered carbon, mixed it with a filler like powdered limestone and a binder, pressed it…

🔥 12.9K 👁 80.3K ⬆ 1.3K 💬 66 🔄 14 · Anonymous on Quora

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13 What is the difference between a current transformer and a voltage transformer in terms of output value?

14 Do I have a dead pixel on my new laptop?

15 How much does the flashlight on a smartphone cost?

16 What is the purpose of connecting a capacitor in series with another component?

17 Does Russia have modern computers?

18 What are the potential consequences of soldering a wire to the positive side of a battery?

19 Can you wire a capacitor backwards?

20 Why do ICs need bypass capacitors?

21 Why does a cheap knockoff brand power adapter-charger damage a MacBook even though it looks and feels identical?

22 What were used to convert DC to AC before inverters?

23 Is a clicking relay bad?

24 Connecting the primary and secondary coil of a microwave transformer in other to achieve a step up/down transformer, what will happen?

25 What is one lesser-known electronic component that most hobbyists or students overlook, but professionals swear by?

26 Can low voltage damage a fan?

27 What are the parts of a coaxial cable? What function does each part serve?

28 Does a blinking LED use more power than a solid-lit LED?

29 Why does MOSFET operate in saturation to act as an amplifier?

30 What are some old electronics that if shown to people, most wouldn’t know what it is?

31 Why are 9-Volt batteries rectangular?

32 Why is a transistor called a current controlled device?

33 When a device is waterproof, why is it specifically "for x minutes" and "at up to x feet"?

34 What are the typical scenarios where you would need a resistor capable of handling power as high as 100 Watts?

35 Is it necessary that every microprocessor must have 40 pins in the total number?

36 In a foxhole radio, which part acts as a tuner, and which part act as a detector?

37 How can I make a 12V battery for starting a car with a supercapacitor?

38 How do devices like USB chargers step down 120V AC to 5V DC?

39 Have rounded corners on rectangular electronic devices been patented in the U.S. by Apple?

40 What size resistor do I need to discharge a capacitor?

41 What is the difference between a supercapacitor and an ordinary capacitor in terms of discharge time?

42 Is it possible to use high frequencies in transformers instead of low frequencies?

43 What is a DC inductor, and how does it function in a direct current (DC) circuit?

44 Where can I find dirt cheap computers?

45 How do you identify each of the three phase conducting lines in high voltage towers? What are the remaining lines?

46 What is the process of PCB printing with an "on board chip" which is black coloured circular in shape which is used in place of a microcontroller? How is it done? Where it is done?

47 Which application should I install in a PC to simulate electronic circuits?

48 What is the basic working principle of a transistor? What type of transistor can be used for this purpose?

49 What are some funny electronics/circuit related jokes?

50 How long would a 50 farad capacitor light up an LED?

51 Aside from tablets, what other everyday electronic device do you think needs modularity the most?

52 What happens when you put a fork into an electrical socket?

53 Why does the Raspberry Pi 4 need a fan but the older models do not need one?

54 What replaced transistors in radios/stereo equipment?

55 What is the best Hi-Fi amplifier?

56 Is it true that you can power a radio antenna just by giving it a good earth grounding?

57 Why is that there are no electronics repair workshops anymore?

58 Why does rectified voltage boost after adding a capacitor?

59 Why do you need to read schematic diagrams when fixing electronic boards?

60 Why does the Esaki oscillator work only with a 2n2222A transistor?

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