Lakshya Education MCQs

Question: What will happen to an insulating medium if voltage more than the breakdown voltage is applied on it ?
Options:
A.It will become magnetic
B.It will melt
C.It will get punctured or cracked
D.Its molecular structure will get changed
Answer: Option C

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More Questions on This Topic :

Question 1. If three 15 uF capacitors are connected in series, the net capacitance is
  1.    5 uF
  2.    30 uF
  3.    45 uF
  4.    50 uF
Answer: Option A
Question 2. If three 10 uF capacitors are connected in parallel, the net cararitance is
  1.    20 uF
  2.    30 uE
  3.    40 uF
  4.    50 uF
Answer: Option B
Question 3. Capacitors can be used only for D.C.
  1.    Air
  2.    Paper
  3.    Mica
  4.    Electrolytic
Answer: Option D
Question 4. The units of volume charge density are
  1.    Coulomb/meter
  2.    Coulomb/meter
  3.    Coulomb/meter
  4.    Coulomb/meter
Answer: Option D
Question 5. The sparking between two electrical contacts can be reduced by inserting a
  1.    capacitor in parallel with contacts
  2.    capacitor in series with each contact
  3.    resistance in line
  4.    none of the above
Answer: Option A
Question 6. At a point is equal to the negative potential gradient at that point.
  1.    Electric intensity
  2.    Electric flux
  3.    Magnetic flux
  4.    Magnetic flux density
Answer: Option A

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