Can you answer the top question as well?

carbon rises to 72.C? At 20C, the carbon resistor in an electric circuit connected to a 8.9-V battery has a resistance of 2.6 X. 102 0. What is the current in the circuit when the temperature of the .35289 X Your response is off by a multiple of ten. mA Need Help? Read It 9. [-/1 Points] DETAILS SERCP11 17.5.P.027. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Gold is the most ductile of all metals. For example, one gram of gold can be drawn into a wire 2.01 km long. The density of gold is 19.3 x 10 kg/m , and its resistivity is 2.44 X 10 8 0 . m. What is the resistance of such a wire at 20.0.C? MO Need Help? Read It Submit Answer 10. [-/2 Points] DETAILS SERCP11 17.6.P.035. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A 5.00 V power supply provides a maximum current of 10.1 A. HINT a) Calculate the maximum power delivered (in W) by the power supply. W (b) How many 1.62 W cell phone chargers could be powered by the power supply? Include fractional numbers in your answer. chargers Need Help? Read It Watch It 11. [-/5 Points] DETAILS SERCP11 17.6.P.050. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A tungsten wire in a vacuum has length 10.0 cm and radius 6.00 mm. A potential difference is applied across it. (a) What is the resistance of the wire at 293 K? (b) Suppose the wire reaches an equilibrium temperature such that it emits 85.0 W in the form of radiation. Neglecting absorption of any radiation from its environment, what is the temperature of the wire? (Note: e = 0.320 for tungsten.) K (c) What is the resistance of the wire at the temperature found In part (b)? Assume the temperature changes linearly over this temperature range. (d) What voltage drop is required across the wire? (e) Why are tungsten lightbulbs energetically inefficient as light sources