Basic Electrical Engineering Practice Test 4

1. Find the capacitance of a capacitor whose area of cross section of the plates is 4m² and distance of separation between the plates is 2m. The capacitor is placed in vacuum.

2. Which, among the following, do not have any unit?

3. Which among the following statements is true with regard to electric field lines?

4. What happens when one material is rubbed against another?

5. Which, among the following is the correct expression for an electric field?

6. Calculate the distance between the plates of the capacitor having C=20F, actual permittivity = 5F/m n=3 and A=4m².

7. While discharging, what happens to the current in the capacitive circuit?

8. What happens to the potential difference between the plates of a capacitor as the thickness of the dielectric slab increases?

9. What happens to the capacitance of a multi plate capacitor when the area of cross section of the plate decreases?

10. An 8microF capacitor is connected in series with a 0.5 megaohm resistor. The DC voltage supply is 200V. Calculate the voltage in the capacitor 4s after the power is supplied.