Q. For which of the following parameter variation, the capacitance of the capacitor remains unaffected ? Distance between plates Area of the plates Nature of dielectric Thickness of the plates Answer: Thickness of the plates
Q. Three capacitors each of the capacity C are given. The resultant capacity C can be obtained by using them all in series all in parallel two in parallel and third in series with this combination two in series and third in parallel across this combination Answer: two in parallel and third in series with
Q. “The total electric flux through any closed surface surrounding charges is equal to the amount oflcharge enclosed”. The above statement is associated with Coulomb’s square law Gauss’s law Maxwell’s first law Maxwell’s second law Answer: Gauss’s law
Q. The lines of force due to charged particles are always straight always curved sometimes curved none of the above Answer: always curved
Q. Voltage applied across a ceramic dielectric produces an electrolytic field 100 times greater than air. What will be the value of dielectric constant ? 50 100 150 200 Answer: 100
Q. The electric field at a point situated at a distance d from straight charged conductor is proportional to d inversely proportional to d inversely proportional to d none of the above Answer: inversely proportional to d
Q. A field line and an equipotential surface are always parallel always at 90° inclined at any angle 0 none of the above Answer: always at 90°
Q. The electric field intensity at a point situated 4 meters from a point charge is 200 N/C. If the distance is reduced to 2 meters, the field intensity will be 400 N/C 600 N/C 800 N/C 1200 N/C Answer: 800 N/C
Q. A dielectric material must be resistor insulator good conductor semi conductor Answer: insulator
Q. If three 10 uF capacitors are connected in parallel, the net cararitance is 20 uF 30 uE 40 uF 50 uF Answer: 30 uE
If three 10 uF capacitors are connected in parallel, the net cararitance is Read More »
