For higher accuracy, should R decade be large or small? Why?

Expert Solution

For accuracy resistance decade should be small range of resistance.Decade boxes are passive devices that consist of switches and, depending upon the type of box, a series of resistors, capacitors, or inductors of different values arranged to form “decades”. Decades are set up in factors of ten and stepped such that any value 0 through 9 can be selected. For example, a resistance decade box may have a 5 ohm resistor, a 2 ohm resistor, and two 1 ohm resistors in the first decade. The second decade may have a 50 ohm resistor, a 20 ohm resistor, and two 10 ohm resistors. The third decade may have a 500 ohm resistor, a 200 ohm resistor, and two 100 ohm resistors. With this combination, this three decade box can be switched to any value from 1 ohm to 999 ohms in 1 ohm steps. Some decade boxes may have 6 or more decades to allow for very wide ranges and highly precise values. Decade boxes are characterized by their range, maximum resolution, and accuracy.

genius_generous answered 11 months ago

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