Year 2024

Week # 4 Quiz 3

Q1. There is a perfect circle of Lissajous pattern on the screen of C.R.O. when voltages of equal magnitude and__________phase shift are applied.

Q2. ___________is an instrument which measures the insulation resistance of an electric circuit relative to earth.

Q3. In a single phase energy meter, the series electromagnet is energized by a ................. of…………………..

Q4. For a given line voltage, four heating coils will produce maximum heat when connected

Q5. What is the primary purpose of a piezoelectric element in certain devices?

Q6. Illumination level required for precision work is around _______lumen/ \(m^2\)

Q7. Which among the following type of bulbs are used for ceiling lights and wall lights?

Q8. Which of the following is not maxwell’s equation (Here \(E \) represents electrical field, \(B\) represents magnetic field, \(\varepsilon\) represents epsilon, \(\rho\) represents charge density)?

Q9. The potential inside a charged hollow sphere is,

Q10. A medium behaves like dielectric when \(_{-------------}\)