Related Questions

Which of the following capacitors will have the least value of breakdown voltage ?
A Mica
B Paper
C Ceramic
D Electrolytic
Paper capacitors usually have a tolerance of
A ± 5%
B ± 10%
C ± 15%
D ± 20%
What will happen to an insulating medium if voltage more than the breakdown voltage is applied on it ?
A It will become magnetic
B It will melt
C It will get punctured or cracked
D Its molecular structure will get changed
Price of paper has increased by 20%. Approximately, what percent of the paper usage must be curtailed so that the expenditure for paper remains the same?
A 8.66%
B 12.33%
C 16.66%
D 17.33%
For closer tolerances which of the following capacitors is usually preferred ?
A Paper capacitor
B Mica capacitor
C Ceramic disc capacitor
D None of the above
A survey was conducted among the students of Khulna University to find out how many forms of physical exercise usually swam, 25% said they usually did jogging, 20% said they played cricket, 15% said they usually played football and 20 respondents said they did not take any form of exercise. From the above findings it can be concluded that.
A The student of khulna University do not usually take physical exercise.
B No respondent took more than one form of exercise.
C The method of data collection was not valid.
D Some of the respondents took more than one form of exercise.
For measurements on high voltage capacitors, the suitable bridge is
A [

A. Wein bridge

B Schering bridge
C Any of the above
D None of the above
The breakdown voltage of a cable depends on
A Presence of moisture
B Working temperature
C Time of application of the voltage
D All of the above
As the junction temperature increases, the voltage breakdown point for Zener mechanism ___________
A Is increased
B Is decreased
C Remains the same
D None of the above
As the junction temperature increases, the voltage breakdown point for avalanche mechanism ___________
A Remains the same
B Decrease
C Increases
D None of the above

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