Too bad!You can't salvage something that is already damaged. It might be putting out 0.5 volt now but later it won't function anymore. I suggest you scrap that idea of raising up the voltage to 5 volts.
Sorry but that's the way it is. The 0.5 volt could only be temporary and soon the damage...
Your friend is correct. If the specs show resistance is 4 ohms or 8 ohms, it is purely resistive in value. Ohm is a unit of resistance. However, the real value of speaker is measured in impedance not only resistance, the value of which varies with frequency.
Speakers are constructed with coils...
There is always that margin of error.
There is that theoretical result and the actual result. In the first place inductance varies on several factors and there is no such thing as perfect material and process.
What an ingenious way to test it with water and salt as dummy load.
I haven't used water with salt.
How do you know how much salt you need to add to measure the full load and what should be the increment?
My apology. I mistyped X instead of /.
So it should be Apparent Power (VA) = Real Power (in watts)/PF(power factor).
Power factor is normally less than one.
Thanks itsmoked for your comment.
In the example, the glass is the cable capacity. So the glass should be taller to accomodate the beer suds.
Easy to remember. Apparent power equals real power if the unit is perfect. No losses due to reactive impedance.
However, in real life, there is no perfect system. So, it is well accepted...
Normally when you use a multi-meter to measure voltages or currents, the measured values are in RMS. I hope you set it up to the right AC voltage range.
If the meter reading contantly varies, it is probably the variations of the load that created that.
Are you sure, your meter is not...
Assuming without load, yes there is a problem on the transformer. Now, if you are not 100% sure, have somebody trace and check one leg. You might find something connected to it illegally or undocumented.
It's a crazy idea to reduce power consumption by installing a transformer. Transformers can be step-up or step-down. What do you use? Step down? What for? All your appliances are running the standard power at 120 VAC and if you need the lower power in DC, you have these individual power...
Two possible things to look at. The neutral should be common to both the panel and the unit. Secondly, the KVA rating of the transformer before the panel.
If one leg is drawing more current than the rating of the transformer, it could bring the voltage down to meet the same KVA rating.
Check...
Normally the chassis or the power supply metal case is connected to ground. It may not be floating because if the outlet 120VAC is connected to ground, then effectively the chassis of the power supply is connected to ground.
That was my contention here! If you think it may interfere, then don't take the risk. Just put off the cell phone and do something else while on flight.
Or better still use your cell phone a lot prior to boarding so, you can rest while on flight. A lot of people I know, chat a lot. If you try...
Com'on guys! It doesn't matter whether it is interference or not why they don't want you to use your cell phones when the plane is taking off or landing.
If we can avoid using our cell phones just for a FEW MINUTES, not an hour or a day, for the safety of all passengers including your beloved...
Tell your friend, nowadays that degree has very less demand. Many telecom companies have closed down or trimmed their technical staff. With the merging of computers and communications, any telecom networks now are being handled by non-engineers. In other words, the future for your friend's...
