User Everyone - Electrical Engineering Stack Exchange

bio	website
	location	Nagpur, India
	age	36
visits	member for	1 year, 10 months
	seen	20 hours ago
stats	profile views	59

	810 reputation	bio	website		visits	member for	1 year, 10 months
1315 badges		location	Nagpur, India		seen	20 hours ago

1

27

votes

8

answers

2

kviews

Why do utility companies supply at a frequency of either 50/60 Hz?

frequency power-distribution

may 9 '12 at 4:33 Tony Stewart 1

11

votes

1

answer

547

views

How do these new-fangled phone chargers achieve step-down?

transformer adapter

sep 22 '11 at 7:18 stevenvh 86.1k

6

votes

1

answer

176

views

Why does the ionosphere reflect HF but allow VHF signals to penetrate through?

ham-radio transmission

jan 13 at 13:22 m.Alin 2,953

6

votes

3

answers

193

views

What difference does it make to an appliance whether the supply is sinusoidal, or any other shape?

ac

oct 5 at 11:08 John B 1

6

votes

2

answers

183

views

Does the capacitor dielectric experience heating due to rapid charge/discharge cycles?

capacitor

jul 25 at 17:38 stevenvh 86.1k

4

6

votes

5

answers

11

kviews

Why is high input impedance good?

impedance

nov 4 '11 at 15:35 supercat 13.7k

4

votes

5

answers

219

views

Does CW or SSB consume more power?

low-power battery-operated ham-radio

jan 14 at 20:36 DrFriedParts 4,592

4

votes

4

answers

411

views

What kind of capacitor could build up, and maintain a charge acquired from lightning?

capacitor

jul 13 at 11:20 stevenvh 86.1k

4

votes

1

answer

129

views

What frequency/band lends itself to interstellar communication? [closed]

communication frequency

jun 21 '12 at 13:40 embedded.kyle 4,848

4

votes

3

answers

579

views

How can an LED series continue to work after an LED goes bad?

led

mar 4 '12 at 22:00 Ilmari Karonen 432

4

votes

1

answer

264

views

How does a wind turbine protect the bank from a reversal in polarity when spin direction is reversed?

dc-motor generator

sep 17 '11 at 13:45 Majenko 12.3k

4

votes

2

answers

268

views

How does a wind farm prevent the fastest spinning turbine from driving the slowest one?

grid

sep 16 '11 at 11:51 dren.dk 2,534

1

4

votes

3

answers

197

views

Will a faster rate of change of flux improve electricity generation?

electromagnetism generator flux

sep 14 '11 at 9:59 Everyone 810

4

votes

3

answers

1

kviews

If the energy meter sees a reactive load, will it register a lower reading?

power-meter reactance

sep 6 '11 at 0:29 wbeaty 440

3

votes

3

answers

70

views

What advantages to permeability tuning as against capacitive tuning?

radio

14h ago Andy aka 6,530

3

votes

2

answers

1

kviews

Do transformers use Aluminium windings?

transformer resistance

jun 23 '12 at 4:36 Oli Glaser 34.1k

2

votes

3

answers

409

views

How to ground a vintage device that was powered without a ground?

power-supply ground

oct 24 at 7:11 sharptooth 3,383

2

votes

3

answers

487

views

Is this the right way to mount a 2N3055 or any TO-3 form on a heat-sink?

heatsink

oct 21 at 16:06 Tony Stewart 1

2

votes

2

answers

161

views

Would replacing a resistor by another one of identical value but higher power rating affect the working of a circuit?

resistors power-dissipation

oct 21 at 11:08 Dave Tweed 20k

1

2

votes

2

answers

387

views

How do I construct a SPICE model from a data-sheet?

datasheet spice modeling

sep 27 at 5:32 Oli Glaser 34.1k

2

votes

2

answers

1

kviews

How to calculate suitable dummy load for a power-supply?

power switch-mode-power-supply load

may 19 '12 at 17:19 Everyone 810

2

votes

1

answer

344

views

What is the risk in unplugging a USB device without disconnecting it in the OS? [closed]

usb

dec 29 '11 at 17:37 Chris Stratton 8,812

2

votes

1

answer

415

views

How do I test a circuit without an oscilloscope?

equipment test

dec 9 '11 at 8:30 Oli Glaser 34.1k

2

votes

1

answer

200

views

Is there a mathematical relationship between the battery AH rating, and that of the transformer in the charger

current battery-charging

nov 18 '11 at 8:27 Russell McMahon 56.1k

1

vote

0

answers

52

views

Does skin effect distort a transmission pattern?

antenna ham-radio

may 22 at 5:44 Camil Staps 4,327

1

vote

1

answer

44

views

Why is the output from this astable 555 the reverse of it's simulation?

555 ltspice astable

may 18 at 5:00 Kaz 6,989

1

vote

1

answer

92

views

What tests for a defective IC may be done with only a multimeter?

multimeter testing

apr 20 at 2:25 John R. Strohm 466

1

vote

2

answers

210

views

What should attaching another magnet to the back of the speaker magnet do?

speakers

dec 24 at 15:25 Garrett Fogerlie 3,400

1

vote

1

answer

50

views

How long a lead may be used to connect a component to a circuit?

connector components wire

sep 20 at 9:29 stevenvh 86.1k

1

vote

2

answers

325

views

My inverter keeps flipping between battery/mains slowly at first, then faster. Why?

capacitor relay inverter repair

aug 9 at 15:53 Community♦ 1

Everyone

36 Questions