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SSC JE 2017: Electrical Rankers Quiz 1

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Question 1

In an R-L series circuit, R = 10 Ω & L = 20 mH, circuit operating frequency is 50 Hz then find Circuit power factor is

Question 2

The resistance between any two terminals of balanced delta-connected load is 12Ω. The resistance of each phase is ………………..

Question 3

During electrolysis, mass of an element liberated at the electrode is…………of the element.

Question 4

The life of the positive plates of a lead-acid cell is roughly…………………that of negative plates.

Question 5

A current through a coil of Inductance 5 H is decreasing at the rate of 2 A/sec.
The e.m.f. induced in the coil is

Question 6

A current of 3A flowing in the primary coil is reduced to zero in 0.00 1 s and the induced e.m.f. in the secondary is 15000 V.The mutual inductance between the two coils is

Question 7

A 180 cc of water sample drawn on to a empty dry crucible whose initial mass is found to be 98.636 gm. After oven drying at 103’C its final mass is 98.697gm. Then it is kept in a muffle furnace at 700’C for an hour. After cooling the mass of the sample in crucible is 98.654gm. The volatile solids present in the water sample (in mg/lit) is

Question 8

For the circuit shown in figure below, the values of as and are respectively given by

Question 9

Two coupled coils with have a coupling coefficient of The turns ratio is

Question 10

The resistance of a 1 kW electric heater when energized by a 230 V 1-phase AC is
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Sep 9ESE & GATE EE