A cable carrying alternating current has__________?
A. hysteresis losses onlyB. hysteresis and leakage losses only
C. hysteresis, leakage and copper losses only
D. hysteresis, leakage, copper and friction losses…
The electrostatic stress in underground cables is_________?
A. same at the conductor and the sheath
B. minimum at the conductor and maximum at the sheathC. maximum at the conductor and minimum at the sheath
D. zero at the conductor…
Underground cables are laid at sufficient depth___________?
A. to minimise temperature stresses
B. to avoid being unearthed easily due to removal of soilC. to minimize the effect of shocks and vibrations due to gassing vehicles,…