General Electronics

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General Electronics -

Resistors, capacitors, breadboards, soldering, etc. Moderator: PerryBebbington.

Why do some toggle switches have two pins per point in the circuit ?

6
Replies

2,199
Views

Feb 24, 2013, 08:19 am
by amundsen

Why do USB cables lose the ability to charge quickly over time?

13
Replies

4,979
Views

Oct 09, 2017, 07:22 pm
by MarkT

why do we need a resistor connected to the base of the transistor?

« Pages: 1 2 »

birkomester

20
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12,321
Views

Feb 05, 2014, 01:40 pm
by batteryman

Why do we need additional resistor between digital input/pushbutton and GND?

ArifOyong

3
Replies

787
Views

Jul 17, 2014, 06:09 pm
by MarkT

Why do we need capacitors for nrf24 radio modules?

2
Replies

264
Views

May 07, 2020, 02:41 am
by MarkT

Why do we need resistors for a Touch capacitive arduino keyboard?

Eesh

4
Replies

430
Views

Oct 21, 2014, 05:56 pm
by Eesh

Why do you need a 2nd resister when using a photo-resister?

Juel911

3
Replies

981
Views

Jan 09, 2015, 02:13 pm
by MarkT

Why does a 9V battery power a 5V Arduino?

kikitsu

5
Replies

2,101
Views

Nov 20, 2012, 10:30 am
by Docedison

Why does a capacitive sensor become more sensitive as resistance increases?

Kencephalon

5
Replies

2,237
Views

Jan 17, 2019, 05:22 pm
by JulianReis

Why does a high-impedance input make it easy for pin to "change state"?

7
Replies

3,769
Views

Feb 10, 2017, 05:43 pm
by Jiggy-Ninja

why does a p-channel JFET differ from an n-channel JFET?

diaryrashid

3
Replies

2,596
Views

Feb 25, 2013, 06:59 pm
by diaryrashid

why does a red led take less amps to work?

TrailerTrash

8
Replies

3,522
Views

Jun 29, 2013, 06:41 pm
by runaway_pancake

Why does an input pin (set for attachInterrupt) have a 5V on it?

« Pages: 1 2 »

curtisrands

17
Replies

4,581
Views

May 02, 2013, 06:25 am
by Grumpy_Mike

why does an RC electric motor has 3 wires ?

14
Replies

8,714
Views

Nov 14, 2013, 01:59 am
by firashelou

Why does ardunio and external platine need to be grounded together?

BennX

5
Replies

1,220
Views

Oct 23, 2014, 12:03 pm
by Paul__B

why does ethernet not use gnd?

6
Replies

778
Views

Dec 20, 2014, 01:03 am
by MarkT

Why does every LED need a resitor

« Pages: 1 2 »

24
Replies

2,046
Views

Mar 19, 2019, 05:12 pm
by Paul__B

Why does is a motor's ground different to its power source?

6
Replies

1,171
Views

Aug 01, 2016, 12:16 am
by MarkT

Why does longer LED strips use less power?

4
Replies

570
Views

Feb 16, 2019, 01:39 pm
by Danois90

Why does my circuit drains the battery over night ?

14
Replies

715
Views

Dec 03, 2019, 02:53 pm
by tadashimori

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