A voltage of #180# #V# is placed across a substance. The current begins higher, but as the substance's temperature changes it falls to #6# #A#. What is the resistance of the substance at this point?

1 Answer
David G. · Steve J.
Jan 7, 2018

The resistance is #30# #Omega# when the current has decreased to #6# #A#.

Explanation:

There is a law for the relationship between current and resistance, called Ohm's Law, #V=IR#. First find the applied voltage: #V=IR=10xx18=180# #V#. Then #R=V/I=180/6=30# #Omega#.

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