Example 1.7: A specimen of copper has a resistivity (p) and a temperature coefficient of 1.6x10 ohm-cm at 0 C and 1/254.5 at 20 Co respectively. Find both of them at 60 C.

Can you explain the calculation I saw some similar online but I don’t think it’s right can u illustrate me

From the diode circuit shown in Figure 1, show how to determine the resulting output voltage signal. Given the input voltage signal Vi it is as shown in Figure 1 on the left and the diode used in Circuit 1 is 1.1. Ideal diode 1.2. Diode using approximation model 10 ARA " t V₁ O 1kQ www 1k2 Figure 1 SI Z ww ΣΚΩ V₂ +15V

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