Georg Simon Ohm German mathematician and physicist, began his important publications in 1825. In his first paper published in 1825, Ohm examines the decrease in the electromagnetic force produced by a wire as the length of the wire increased. The paper deduced mathematical relationships based purely on the experimental evidence that Ohm had tabulated. In two important papers in 1826, Ohm gave a mathematical description of conduction in circuits modelled on Fourier's study of heat conduction. These papers continue Ohm's deduction of results from experimental evidence and, particularly in the second, he was able to propose laws which went a long way to explaining results of others working on galvanic electricity. The second paper certainly is the first step in a comprehensive theory which Ohm was able to give in his famous book published in the following year.
For smaller values (eg below 1000), simply use ohm, for biggers (above 1000000) use megohm, between them use kilo-ohm.
We do not use transitors from 4 to 10 ohms. We use resistors.
yes
No. Not and maintain good balance and dynamic range.
Just use it like an 8 ohm speaker or else connect two 16 ohm speakers in parallel to form an 8 ohm load. Parallel is positive to positive and negative to negative.
It is the same, you can use ohm, µ, R or E to represent Ohm, like 2E2 or 2R2 = 2.2 Ohm and 2K2 = 2.2 Kilo Ohm also 2M2 will be 2.2 Mega Ohm.
An ohm meter doesn't put out enough voltage, you need to use a megger.
To ohm out a motor one would use an ohm meter. If one does not own or can not obtain a meter, the motor can be taken to a shop and ohmed out there for a fee.
Sorry, but there is really no 4 ohm or 8 ohm amplifier. We use only voltage bridging. Scroll down to related links and look at "Interconnection of two units".
you use an ohm meter
If the amplifier is designed for an 8 ohm load, then you should use an 8 ohm load. Three 8 ohm speaker in series is 24 ohms, and in parallel they are 2.67 ohms. Neither of those is a good match for an 8 ohm rated amplifier. If you do this, you will not achieve rated power, and you may well damage the amplifier.