A telephone line (cable) stretches between two points which are 150 ft apart and at the same elevation. The line sags 5 ft and the cable has a weight of 0.3 lb/ft. Determine the length of the cable and the maximum tension in the cable.

25. What is the nonconductive covering around a wire?   Select one: A. DUCT BANK B. INSULATION C. RACEWAY D. CONDUCTOR

6. Find whether the below graph is HAMILTONIAN GRAPH or not. Find whether the graph has a Hamiltonian Path and the Hamiltonian Circuit. B E D

.________ is a term used to describe a material's ability to retain magnetism. a) Coercive force b) Retentivity c) either "a" or "b" d) neither "a" nor "b" A coercive force is desirable in materials that is intended to be used as temporary magnets. a) low b) high c) extremely high d) any of the above A) Upon what does the electroniagnetic strength of an air-cored coil depend? a) number of turns in the coil b) amount of current flowing through the coil c) both "a" and "b" d) neither "a" nor "b" B) Upon what does the electromagnetic strength of an iron-cored coil depend? a) amount of current flow b) number of turns c) permeability of the core d) all of the above The left hand rule for a coil is such that if you were to hold a coil in your left hand with your fingers pointing in the direction of electron flow, your thumb would point in the direction of the a) electron flow b) lines of flux c) north pole face d) none of the above