Question

What is the difference between ohm meter vs ohm meter^-1

Answer 1

Each type of meter has its advantages. Used as a voltmeter, a digital meter is usually better because its resistance is much higher, 1 MΩ or 10 MΩ, compared to 200 Ω for a analog multimeter on a similar range.

Answer 2

ohm meter is the si unit of resistivity of a material while ohm metre^-1 is the si unit if conductivity of the material which is the reciprocal of resistivity...