Dielectric strength of mica is___________?

Related Mcqs:

1. Dielectric constant for mica is nearly_____________?

   A. 200
   B. 100
   C. 3 to 8
   D. 1 to 2

2. Voltage applied across a ceramic dielectric produces an electrolytic field 100 times greater than air. What will be the value of dielectric constant ________?

   A. 50
   B. 100
   C. 150
   D. 200

3. Dielectric strength of medium____________?

   A. increases with rise in temperature
   B. increases with moisture content
   C. is same for all insulating materials
   D. none of the above

4. Dielectric strength of a medium is usually expressed in____________?

   A. J/mm
   B. C/m2
   C. kV/mm
   D. N/mm

5. Which medium has the least dielectric strength ____________?

   A. Paraffin wax
   B. Quartz
   C. Glass
   D. Air

6. Dielectric strength of a material depends on_____________?

   A. moisture content
   B. temperature
   C. thickness
   D. all of the above
   E. none of the above

7. The unit of dielectric strength is given by___________?

   A. V/m
   B. V2/m
   C. m/V
   D. m/V2

8. Dielectric strength _________ with increasing thickness

   A. increases
   B. decreases
   C. remains unaltered
   D. none of the above

9. A mica capacitor and a ceramic capacitor both have the same physical dimensions. Which will have more value of capacitance _______?

   A. Ceramic capacitor
   B. Mica capacitor
   C. Both will have identical value of capacitance
   D. It depends on applied voltage

10. If mica sheet is placed between the plates of a capacitor the capacity_______________?

    A. increases
    B. decreases
    C. increases then decreases
    D. decreases then increases