Q. Which of the following capacitors will have the least variation ? Paper capacitor Ceramic capacitor Silver plated mica capacitor None of the above Answer: Silver plated mica capacitor

Q. In a capacitive circuit a steady value of applied voltage causes discharge an increase in applied voltage makes a capacitor charge decrease in applied voltage makes a capacitor charge none of the above Answer: an increase in applied voltage makes a capacitor charge

Q. Which of the following materials has the highest value of dielectric constant? Glass Vacuum Ceramics Oil Answer: Ceramics

Q. The absolute permittivity of free space is given by 8.854 x 1(T9 F/m) 8.854 x 1(T10 F/m) 8.854 x KT11 F/m 8.854 x 10″12 F/m Answer: 8.854 x 1(T10 F/m)

Q. A paper capacitor is usually available in the form of tubes rolled foil disc meshed plates Answer: rolled foil

Q. A gang condenser is a polarised capacitor variable capacitor ceramic capacitor none of the above Answer: variable capacitor

Q. A capacitor consists of two insulators separated by a conductor two conductors separated by an insulator two insulators only two conductors only Answer: two conductors separated by an insulator

Q. Capacitance increases with increase in plate area and decrease in distance between the plates increase in plate area and distance between the plates decrease in plate area and value of applied voltage reduction in plate area and distance between the plates Answer: increase in plate area and decrease in distance between the plates

Q. When a dielectric slab is introduced in a parallel plate capacitor, the potential difference between plates will remain uncharged decrease increase become zero Answer: decrease