Ohm meter is a unit of :
[66th BPSC Re-exam]
1) resistance
2) conductance
3) resistivity
4) charge
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3) resistivity
What are
What is Resistance and Resistivity ?
Resistance and Resistivity ?
Resistance- The force that opposes the flow of current.
SI Unit- Ohm
Resistivity- The property of a material that causes it to oppose a current.
SI Unit- Ohm-m
Why this extra metre in SI unit ? Because it also depends on the length of that material.