What is the maximum permissible current in an 82Ω, 2W resistor? What is the maximum voltage that can be applied to the resistor?

1.Determine the number of free electrons in a 1 cm³ of copper at room temperature. 2. A resistor of 3.6 ohms is connected in series with another of 4.56 ohms. What resistance must be placed across 3.6 ohms so that the total resistance of the circuit shall be 6 ohms? 3. A circuit consists of three resistors of 3 ohms, 4 ohms and 6 ohms in parallel and a fourth resistor of 4 ohms in series. A battery of e.m.f. 12 V and internal resistance (in series with the battery e.m.f.) 6 ohms is connected across the circuit. Find the total current in the circuit and terminal voltage across the battery.

Bonus Question. From the meter readings in Figure X, determine the most likely problem. State how you could quickly isolate the exact location of the problem. 115 Vrms 1:1 ooooo relele 115 DMMI Figure X D₁ D₁ 103 V de DMM2 100 μF RL * 10 ΚΩ V de DMM3

Find the equivalent resistance of the combination of resistors shown in the figure below.  (R1 = 1.52 µΩ, R2 = 14.6 µΩ.)

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