Homework Clinic

Science Clinic => Physics => Topic started by: bclement10 on Oct 11, 2019

Title: The resistivity of gold is at a temperature of 20C. A gold wire, 1.8 mm in diameter and 14 cm long, ...
Post by: bclement10 on Oct 11, 2019

Question 1

An electronic component with a 17-Ω resistor is rated for use at power levels not exceeding How much current can safely flow through the component?
◦ 1.21 A
◦ 0.22 A
◦ 0.91 A
◦ 238 A

Question 2

The resistivity of gold is at a temperature of 20°C. A gold wire, 1.8 mm in diameter and 14 cm long, carries a current of 480 mA. What power is dissipated in this wire at 20°C?
◦ 0.25 mW
◦ 0.14 mW
◦ 0.31 mW
◦ 0.19 mW
◦ 0.077 mW

Title: The resistivity of gold is at a temperature of 20C. A gold wire, 1.8 mm in diameter and 14 cm long, ...
Post by: Sierray on Oct 11, 2019

Answer 1

0.91 A

Answer 2

0.31 mW