R6 R4 1.1kQ 15KQ R1 R3 R5 R7 2000 5kQ 5000 1kQ R2 1kQ V1 12 V Figure 1

A 3 V Duracell battery is connected across a lamp of 1 ohm resistance. How much power will be dissipated by the lamp?

2) What doping of Phosphorus (n-type) do you need to make an 1206 resistor have a resistance of 1200 Ohms? The dimensions of an 1206 resistor are L = 3.20mm, W = 1.60mm, H= 0.95mm

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.