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SSC JE 2019-20 Technical Quiz 97

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Question 1

Determine the current (in A) that flows through a 15 ohms resistance, when the potential difference between the terminals of the resistor is 60 V.

Question 2

Determine the power (in W) dissipated by a 16 ohms resistor, when the potential difference between the ends of the resistor is 32 V.

Question 3

Determine the eddy current loss (in W) in a material having eddy current coefficient of 1, thickness of 0.02 m and a volume of 1 cubic metre, which is kept in a magnetic field of maximum flux density of 2 T and supplied by a frequency of 50 Hz.

Question 4

Hysteresis loss occurring in a material does NOT depend on which of the following parameters?

Question 5

A power transistor dissipates If the maximum junction temperature is 90oC, the maximum ambient temperature (thermal resistance, at which the transistor can be operated is

Question 6

The current in a coil of resistance Description: E:\Gate\SSC-JE Electrical - Part 1\2_D-C-Circuit-final_files\image112.png is to be reduced by 90%. What value of resistance should be connected in parallel with it?

Question 7

The percentage by which the incandescence of lamp decreases due to drop of current by 3% is

Question 8

For what voltage does the H type of poles used?

Question 9

What is the factor of safety used for current rating in a power installation?

Question 10

________ should be provided as the working space around the main switchboard according to IE rule 51.
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Jun 29ESE & GATE EE