58 933
Assignments Done
Successfully Done
In March 2018
Your physics homework can be a real challenge, and the due date can be really close — feel free to use our assistance and get the desired result.
Be sure that math assignments completed by our experts will be error-free and done according to your instructions specified in the submitted order form.
Our experts will gladly share their knowledge and help you with programming homework. Keep up with the world’s newest programming trends.

Answer on Electric Circuits Question for megha

Question #65002
what is meant by range of an ammeter? also of voltmeter and galvanometer?
Expert's answer
Range of ammeter(voltmeter) is maximum current(voltage) that this ammeter(voltmeter) can measure. The range corresponds to full-scale voltage or current. The advantage of using ranges is greater accuracy.
For example, suppose you measure 0.8V on a 1V range and on a 100V range.
For an analog meter, you estimate the reading by eye against a scale, while for a digital meter there is an analog to digital converter with a certain number of bits resolution.
Suppose 10 bits corresponds to full scale - 1 bit is about 0.1V on a 100V scale and 0.001V on a 1V scale. So on the 1V scale you have 0.8V +/- 0.001V or about 0.1% accuracy, and on the 100V scale you have 0.8V +/- 0.1V or about 10% accuracy.
A similar problem exists on the analog meter - you just can't read it that well.

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!


No comments. Be first!

Leave a comment

Ask Your question