A 12 gauge copper wire has a nominal diameter of 2.05mm and carries a current of 0.5 A to power a 60 Watt bulb. The free electron density is 8.5x1028 electrons per m3. Determine the current density and drift velocity

make an introduction of at least 30 lines about PROTOTYPE OF PIEZOELECTRIC BALLAST FOR GENERATING ELECTRIC ENERGY THROUGH THE PEDESTRIAN TRAFFIC

Determine the current 1, 12, 13 in mA and the voltage across R1 for the network shown in the figure if E=30 V. Assume diode to be silicon. D I, 3.3 kn R2 13 D2 R1 5.6 kN

A platinum resistance temperature detector (RTD) is used to measured temperature of the hot gas. The resistance of sensing element is 250.3 ohm when it contact with hot gas, calculate the temperature of the gas. The RTD has a resistance of 120 ohm and 80 ohm at 100°C respectively. The temperature coefficient of platinum is 0.0039 C^-1.