User Tripola

16 votes

4 answers

5k views

Why does only the tip of the electrode melt when arc welding?

asked Apr 19, 2018 at 12:56

11 votes

3 answers

4k views

How does the telephone's keypad work?

asked Jan 25, 2018 at 18:00

8 votes

4 answers

2k views

How can a low efficiency antenna be used for receiving but not for transmitting?

asked Apr 26, 2018 at 12:42

7 votes

1 answer

329 views

What antenna is this?

asked Dec 9, 2018 at 15:00

6 votes

3 answers

3k views

What are these electronic components from an old radio?

asked Mar 25, 2018 at 16:09

5 votes

1 answer

175 views

What makes the band of an antenna broader than others?

asked Nov 16, 2017 at 21:14

2 votes

3 answers

514 views

If a PEC surface completely reflects an EM wave, why doesn't an ungrounded shield work?

asked May 2, 2019 at 20:22

1 vote

3 answers

196 views

Aperiod vs Period waveform Fourier Transform: How does nature understand which is the case?

asked Mar 16, 2020 at 19:13

1 vote

1 answer

390 views

Suitable Replacement for a Dual Coil Latching Relay

asked Apr 4, 2020 at 10:10

1 vote

1 answer

705 views

Why does the self-inductance of a straight wire decrease when its radius increase?

asked Jan 5, 2019 at 22:34

0 votes

1 answer

261 views

Could shielding (not grounded) affect signal integrity?

asked Apr 27, 2019 at 11:19

0 votes

1 answer

141 views

How does this dynamo work?

asked May 13, 2018 at 18:06

0 votes

2 answers

123 views

Why is the common lead of unipolar motor connected to the high level voltage?

asked Sep 26, 2018 at 17:10

0 votes

2 answers

141 views

Why is component spread a figure of merit for analog filters design?

asked Jun 6, 2020 at 16:08

0 votes

1 answer

391 views

Non linear behaviour of a pure LC: Is it real or LT Spice is broken?

asked Jul 25, 2020 at 17:40

0 votes

2 answers

762 views

Debugging an old Thermostat: What component is this? (3 pins SMD IC)

asked Apr 3, 2020 at 19:56

0 votes

3 answers

2k views

Why can RLC resonance be dangerous for electronics

asked Jul 7, 2019 at 17:23

0 votes

1 answer

181 views

Charge-pump capacitor power dissipation in voltage converters

asked Sep 14, 2019 at 13:52

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18 Questions

Why does only the tip of the electrode melt when arc welding?

How does the telephone's keypad work?

How can a low efficiency antenna be used for receiving but not for transmitting?

What antenna is this?

What are these electronic components from an old radio?

What makes the band of an antenna broader than others?

If a PEC surface completely reflects an EM wave, why doesn't an ungrounded shield work?

Aperiod vs Period waveform Fourier Transform: How does nature understand which is the case?

Suitable Replacement for a Dual Coil Latching Relay

Why does the self-inductance of a straight wire decrease when its radius increase?

Could shielding (not grounded) affect signal integrity?

How does this dynamo work?

Why is the common lead of unipolar motor connected to the high level voltage?

Why is component spread a figure of merit for analog filters design?

Non linear behaviour of a pure LC: Is it real or LT Spice is broken?

Debugging an old Thermostat: What component is this? (3 pins SMD IC)

Why can RLC resonance be dangerous for electronics

Charge-pump capacitor power dissipation in voltage converters