find the position of a cable fault (c) measure the combined resistance of both cores of a two-core cable January 30, 2021 Read More »
What is the assembly in a cathode-ray tube which fires a stream of electrons at the screen is called January 30, 2021 Read More »
A sinusoidal voltage applied to the input of a CRO with the timebase turned off will result in? January 30, 2021 Read More »
Why it the tungsten–halogen lamp more efficient than a normal tungsten filament lamp? January 30, 2021 Read More »
provide an illuminance of 500 lx for an office 6×15mif the coefficient of utilization is calculated at 0.55, the maintenance factor can be ignored and the luminaire efficacy is 60 lm/W is (a) 90 (b) 21 (c) 10 (d) 15 January 30, 2021 Read More »
what is the electromagnetic output of the low-pressure mercury discharge in a fluorescent lamp January 30, 2021 Read More »
Draw a typical load curve for a large industrial area for a cold winter day and account for the shape of the curve. January 30, 2021 Read More »