IF that were true, then you could take some of the work from the output,
put it back into the input to keep the machine running, and use the rest
to run the lights and the hot water heater in your house. That way, you'd
never need to buy energy from the electric company.
You NEVER get more work out of a machine than you put into it.
Never never never.
(Unless there's a battery or a tiny gasoline engine or a hamster
on a treadmill inside.)
Answer with Explanation:
We are given that
Length of wire 1=
Length of wire 2=
Resistivity of copper wire=
Resistivity of aluminum wire=
Wire 1=Copper wire
Wire 2=Aluminum wire
Diameter of both wires are same and resistance of both wires are also same.
We know that
Resistance =
When diameter of wires are same then their cross section area are also same .

When resistance and area are same then the length of wire depend upon the resistivity of wire .
The length of wire is inversely proportional to resistivity.
When resistivity is greater then the length of wire will be short and when the resistivity is small then the length of wire will be large.

Therefore, 
Hence, the length of wire 1 (copper wire) is greater than the length of wire 2 (aluminum).


Answer:
2A
Explanation:
Voltage = Current * Resistance
V= I*R
I=V/R
I = 24/12 = 2A.
Answer:
A reflected sound wave can be one of two things, an echo or a reverberation. Reverberation happens when sound bounces off surfaces and reaches back to the ear within 0.1 seconds. Echoes happen when sound waves bounce back to the ear after more than 0.1 seconds.
Explanation:
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