A piece of Nichrome wire has a radius of 5.0x 104 m. It is used in a laboratory to make a heater that dissipates 4.00x102W of power when connected to a voltage source of 150 V. Ignoring the effect of temperature on resistance, estimate the necessary length of wire. Number Units
A piece of Nichrome wire has a radius of 5.0x 104 m. It is used in a laboratory to make a heater that dissipates 4.00x102W of power when connected to a voltage source of 150 V. Ignoring the effect of temperature on resistance, estimate the necessary length of wire. Number Units
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Transcribed Image Text:A piece of Nichrome wire has a radius of 5.0x 104 m. It is used in a laboratory to make a
heater that dissipates 4.00x102W of power when connected to a voltage source of 150
V. Ignoring the effect of temperature on resistance, estimate the necessary length of wire.
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Units
Expert Solution
Step 1
Given data :
Radius of wire r = 5 × 10-4 m
Power P = 4 × 102 W
Voltage V = 150V
By using equation R = (rho × l )/ A , we can easily calculate length of wire.
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