An iron wire has a length of 1.50 m and a cross sectional area of 0.240 mm2. If the resistivity of iron is 10.0 x 10-8 n. m and a potential difference of 0.800 V is maintained across its length, determine the current in the wire (in A). 3.6e-2 Can you use Ohm's law to express the current in the wire in terms of the resistance of the wire and the potential difference across the length of the wire? How is the resistance of the wire related to its resistivity, length, and cross-sectional area? A
An iron wire has a length of 1.50 m and a cross sectional area of 0.240 mm2. If the resistivity of iron is 10.0 x 10-8 n. m and a potential difference of 0.800 V is maintained across its length, determine the current in the wire (in A). 3.6e-2 Can you use Ohm's law to express the current in the wire in terms of the resistance of the wire and the potential difference across the length of the wire? How is the resistance of the wire related to its resistivity, length, and cross-sectional area? A
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Transcribed Image Text:An iron wire has a length of 1.50 m and a cross sectional area of 0.240
mm2. If the resistivity of iron is 10.0 x 10-8 0· m and a potential difference
of 0.800 V is maintained across its length, determine the current in the wire
(in A).
3.6e-2
Can you use Ohm's law to express the current in the wire in terms of the
resistance of the wire and the potential difference across the length of the
wire? How is the resistance of the wire related to its resistivity, length, and
cross-sectional area? A
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