A wire with a radius r = .89 mm and length 45 cm is made of two materials, carbon and nichrome. The carbon portion is 15 cm long. The temperature of the wire is 75 c. The wire is connected to a 12 volt battery. A)at what temperature is the total resistance of the wire 1 ohm less than at 20 celsius?

A wire with a radius r = .89 mm and length 45 cm is made of two materi

1.	A wire with a radius r = .89 mm and length 45 cm is made of two materials, carbon and nichrome. The carbon portion is 15 cm long. The temperature of the wire is 75 c. The wire is connected to a 12 volt battery. A)at what temperature is the total resistance of the wire 1 ohm less than at 20 celsius?
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A wire with a radius r = .89 mm and length 45 cm is made of two materials, carbon and nichrome. The carbon portion is 15 cm long. The temperature of the wire is 75 c. The wire is connected to a 12 volt battery. A)at what temperature is the total resistance of the wire 1 ohm less than at 20 celsius?

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