NEET Physics is the scoring paper in the medical entrance examination. Here, you will discover the NEET Physics MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Physics objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Physics Ondielectrics Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.
MCQ on Ondielectrics
1. Which among the following is a dielectric?
(a) Copper
(b) Aluminium
(c) Plastic
(d) Ceramic
Answer
Answer: (d) Ceramic
2. How can a dielectric be converted to a conductor?
(a) Compression
(b) Heating
(c) Expanding
(d) Freezing
Answer
Answer: (b) Heating
3. Which of the following statements is true for a dielectric?
(a) Dielectrics are superconductors at high temperature
(b) Dielectrics are superconductors at low temperature
(c) The cannot become superconductors
(d) They have very less breakdown voltage
Answer
Answer: (b) Dielectrics are superconductors at low temperature
4. Dielectric materials do not have
(a) Free electrons
(b) Bound charge
(c) Proton
(d) neutron
Answer
Answer: (a) Free electrons
5. Dielectric materials are basically
(a) Insulators
(b) Semiconductors
(c) Superconductors
(d) conductors
Answer
Answer: (a) insulators
6. Find the dielectric constant for material with electric susceptibility of 5
(a) 4
(b) 6
(c) 7
(d) 3
Answer
Answer: (b) 6
7. When the air in a capacitor is replaced by a medium of dielectric constant K, the capacity
(a) Deceases K times
(b) Increases K times
(c) The K2 times
(d) Remains constant
Answer
Answer: (b) Increases K times
8. The dielectric constant cannot be
(a) Infinity
(b) 5
(c) 6
(d) 7
Answer
Answer: (a) Infinity
9. A capacitor of capacity C=10μF is connected to a constant voltage battery of 12 V. Now space between plates is filled with a liquid of dielectric constant 5. The charge that flows now from the battery to the capacitor is
(a) 120 μC
(b) 699 μC
(c) 480 μC
(d) 24 μC
Answer
Answer: (c) 480 μC
10. The capacitance of a parallel plate capacitor is C. If a dielectric slab of thickness equal to one-fourth of the plate separation and dielectric constant K is inserted between the plates, then the capacitance becomes
(a) KC/2(K+1)
(b) 2KC/K+1
(c) 5KC/4K+1
(d) 4KC/3K+1
Answer
Answer: (d) 4KC/3K+1