Question

How many significant figures of .00000281 mA

Answer 1

3

Step-by-step explanation:

To determine the number of significant figures in a number use the following 3 rules:

Non-zero digits are always significant

Any zeros between two significant digits are significant

A final zero or trailing zeros in the decimal portion ONLY are significant

Example: .500 or .632000 the zeros are significant

.006 or .000968 the zeros are NOT significant

Answer 2

3 Significant Figures.

Step-by-step explanation:

The zeros to the left of non-zero numbers are Leading Zeros. These zeros are NOT significant. They serve as placeholders to locate the decimal point.