How can an ohmmeter determine if two points on a protoboard are connected?

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An ohmmeter determines if two points on a protoboard are connected by measuring the resistance between them. It uses an internal voltage source and a galvanometer to assess current flow. If the points are not connected, the current will be zero, indicating infinite resistance. Conversely, if the points are connected, there will be a measurable current and finite resistance. This method effectively confirms connectivity between the two points.
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how can an ohmmeter be used to determined if two points on a protoboard are connected?

thnks
 
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vptran84 said:
how can an ohmmeter be used to determined if two points on a protoboard are connected?

thnks
By measuring the resistance between the points?
 
Just to extend on Integral's answer, an ohmmeter measures the resistance between the two points using an internal voltage source and a galvanometer, which measures current. If you measure the resistance between two points that are not connected, the current will be zero and the resistance will be "infinite". If the points are connected, however, there will be current and a finite resistance.
 
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