Q2: Discuss the fundamenta and the following paths:

5. The rod given in the figure is made up of two different materials. - 25 cm * 70 cm Both have square cross sections of 3 mm side. The resistivity of the first material is 4 x 10-3 2.m and it is 25 cm long while second material has resistivity of 5 x 10-³ Q.m and is of 70 cm long. What is the resistivity of rod between its ends?

The derated ampacity of (8) - 12 AWG THHN current carrying copper conductors in a raceway? A. 20 ampsB. 21 ampsC. 24 ampsD. 30 amps

The figure of merit which describes the overall behavior of the wire under stress isdetermined from?Select onea elastic modulus b gauge resistancegauge factorastic factor

The internal resistance of an ideal voltage source is _____. *       A. Infinite       B. Equal to the load resistance       C. Zero       D. To be determined

Q3: For each of the following, indicate True or False: 1- for good conductors, an increase in temperature results in an increase in the resistance level.. 2- First (current) law. At any instant the algebraic sum of the currents at a junction in a network is zero. 3- Lenz's law: Any change in the magnetic environment of a coil of wire will cause a voltage (emf) to be "induced" in the coil. 4- The frequency (f) is measured in Hz where the frequency (f) is related to the period (T) by the relation f == 5- The instantaneous voltage across a pure inductor, V, “lags" the current by 90° 6- Inductance is measured in henries (H) 7- Reluctance is directly proportional to length and inversely proportional to cross- sectional area (R =1 / m A)