Capacitors Numericals Q1. Two metal plates having charges Q , -Q face each other at some separation and are dipped into an oil tank, if the oil is pumped out, the electric field between the plates will _____. Q2. Three capacitors of capacitance 6 μF each are available. The minimum and maximum capacitances, which may be obtained are respectively _____. Q3. The plates of a parallel plate capacitor are made of circular discs of radii 5 cm each. If the separation between the plates is 1 mm . What is the capacitance of the capacitor? Ans. 6.95 × 10-⁵ μF Q4. Three capacitors having capacitances 20 μF, 30 μF and 40 μF are connected in series with a 12V battery. Find the charge on each of the capacitors. How much work has been done by the battery in charging the capacitors? Ans. 110 μC on each approximately, 1.32 milli Joule Q5. The distance between the plates of a parallel plate capacitor is 4 cm . A field of 5,000 volt per metre is established between the plates and an uncharged metal pl
“advguruji” is an educational website that will help the Lovely students in their studies, especially in Mathematics and Science.