Electrical Engineering Mcqs

The inverse of capacitance is called_______________?

• (A)  reluctance
• (B)  conductance
• (C)  susceptance
• (D)  elastance

Answer

Submitted By :Ali Uppal

While testing a capacitor with ohm meter, if the capacitor shows charging, but the final resistance reading is appreciably less than normal, it can be concluded that the capacitor is____________?

• (A)  short-circuited
• (B)  open circuited
• (C)  alright
• (D)  leaky

Answer

Submitted By :Ali Uppal

Energy stored in the electric field of a capacitor C when charged from a D.C source of voltage V is equal to joules_______________?

• (A)  CV2
• (B)  C2V
• (C)  CV2
• (D)  CV

Answer

Submitted By :Ali Uppal

When 4 volts e.m.f. is applied across a 1 farad capacitor, it will store energy of_____________?

• (A)  2 joules
• (B)  4 joules
• (C)  6 joules
• (D)  8 joules

Answer

Submitted By :Ali Uppal

Dielectric constant for mica is nearly_____________?

• (A)  200
• (B)  100
• (C)  3 to 8
• (D)  1 to 2

Answer

Submitted By :Ali Uppal

What is the value of capacitance that must be connected in parallel with 50 pF condenser to make an equivalent capacitance of 150 pF ?

• (A)  50 pF
• (B)  100 pF
• (C)  150 pF
• (D)  200 pF

Answer

Submitted By :Ali Uppal

The capacitor preferred for high frequency circuits is_____________?

• (A)  air capacitor
• (B)  mica capacitor
• (C)  electrolytic capacitor
• (D)  none of the above

Answer

Submitted By :Ali Uppal

If a 6 uF capacitor is charged to 200 V, the charge in coulombs will be____________?

• (A)  800 uC
• (B)  900 uC
• (C)  1200 uC
• (D)  1600 uC

Answer

Submitted By :Ali Uppal

Which of the following material has least value of dielectric constant ?

• (A)  Ceramics
• (B)  Oil
• (C)  Glass
• (D)  Paper

Answer

Submitted By :Ali Uppal

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

Answer

Submitted By :Ali Uppal