what does this sentence mean like altogether?

Question

please explain in a way a 1st grader would understand.

In comparison, Edison's system depended on the generators being close to the users, and depended on very large conductors between the source and destination to avoid large power losses.

Answer 1

To a first grader? OK, I'll try .... with a minimum of math.

Edison generated DC voltage, much like a battery, the current flowed in one direction - from the negative terminal to the positive terminal. It is dificult to raise or lower this voltage from the source to the home.
Now, the loss from the generator to the home is determined by the resistance or opposition to the current flow in the electrical lines. Edison had to keep this loss to a minimum, therefore, he had to use large conductors (wires) with a short distance to travel. The power is a product of the voltage times the amperage. If the wire to the home had a resistance of 10 Ohms and Edison wanted to supply 120 volts to the home and the home used 20 amps (2400 Watts) - he would have to generate 135 volts at the source or 2700 Watts - he would lose 300 watts of power in the wire!
If, on the other hand, he generated a high AC (alternating current) voltage and reduced it at the home - say, 1,200 volts, he would lose only 30 watts in the line with the same resistance - and if he generated 12,000 volts, he would only lose 3 Watts. As you can see, it's much more practical and economical to produce a very high AC voltage and simply "step it down" to 120 volts at the home. (this is done with a transformer at the pole - a transformer will not step DC voltage down)

(The following is for exceptional first graders)
The formulas are P=IE and E=IR where
P=Power E=Voltage I=Amperage and R=Resistance
The loss is refered to as IR loss, or the resistance times the amerage.
The power is the product of the voltage times the amperage - for example, 120 volts at 20 amps is 2,400 Watts (the same 2,400 Watts can be 12,000 volt at only 0.2 amps and since the loss is the current times the resistance, the lower you can reduce the current (the higher the voltage) for the same power, the less loss you will incur in the resistance of the wire. You can now transmit your power over great distances with a reasonable size wire because the resistance or opposition becomes much less of a factor.

Answer 2

I think the context was about drawbacks of direct-current (DC)electricity transmission as compared to alternating-current (AC).

The power transmitted by a pair of wires is a product of the voltage and the current. For the same power, if we can increase the voltage, we may decrease the current proportionally. Decreasing the current allows the use of smaller-diameter wires and thus makes it cost less to build a transmission grid.

AC, back then, found transformers as an inexpensive means to increase the voltage significantly to tens of thousands of volts to transmit very large power using relatively smaller wires. AC transformers can also cheaply do the reverse: to step down the voltage before running it into households.

With DC, however, back then there was no practical means to pump up the voltage; so much larger wires must be used for the same distribution power. This had made remote generation and large scale distribution not feasible.

Hope that helped.

By the way, time has reversed that economics logic. We now know how to make efficient DC "transformers" to pump up DC voltage. Latest distribution grids, therefore, tend to favor using high voltage (hundreds of kV) DC for that same reason of no-induction-coupling, and hence less inductive and coupling losses along the transmission grid.

Answer 3

Edison designed a system that would have generators in every suburb and large diameter wires to carry the electricity..( small wires would have meant that the electrical voltage that he put in would very quickly be reduced by the resistance of the wires).large wires have less resistance....our system now has generators in one place and high voltages that use transformers to reduce the voltage to the houshold supply

hope this helps

Answer 4

This sentence is one among the main complicated I particularly have considered in a collectively as. the place did you detect it? If it have been to be reworded so as that it made experience, it may look like this: "the certainty of the thank you to tame and cope with the on occasion counterproductive reactions of the physique will supply many extra warriors the presence of suggestions to dodge wrestle altogether." nevertheless this continues to be wordy, it particularly is far less confusing to tell that "dodge wrestle altogether" does in actuality mean to dodge wrestle altogether. In different words, warriors will dodge (stay removed from) wrestle (battles) altogether (fullyyt, thoroughly.) Does this help? i'm uncertain what replace into confusing to understand.