BASIC ELECTRONICS SAMPLE QUIZ 1

What device is commonly used in electronic circuits and stores electric charges?

• Capacitance

• Plates

• Capacitor

• Circuit sheets

A capacitor has charge Q. The area of each plate is doubled while the capacitor remains connected to the battery? What happens to the energy stored in the capacitor?

• It will increase by a factor of 2

• It will decrease by a factor of 2

• It will remain constant

• It will become zero

What is the equivalent resistance in this circuit?

• 143.2 Ω

• 198.7 Ω

• 200.4 Ω

• 326.8 Ω

Which of the following best describes the equivalent Capacitance (C) in a series circuit?

• C_eq= C₁ + C₂ + C₃ + C_n

• C_eq= C₁ = C₂ = C₃ = C_n

• 1/C_eq= 1/C₁ = 1/C₂ = 1/C₃ = 1/C_n

• 1/C_eq= C₁ = C₂ = C₃ = C_n

What will happen to the voltage as you increased the area of each plate by a factor of 2 while disconnected from the battery?

• The potential difference remains the same

• The potential difference becomes zero

• The potential difference increases by a factor of 2

• The potential difference decreases by a factor of 2

A 5-nF is desired. How much distance should the plates have if each has an area of 5 m²?

• 6.25 mm

• 7.85 mm

• 8.85 mm

• 9.25 mm

Which of the following best describes the voltage in a parallel circuit?

• V_T= V₁ + V₂ + V₃ + V_n

• 1/V_T= 1/V₁ + 1/V₂ + 1/V₃ + 1/V_n

• 1/V_T= V₁ + V₂ + V₃ + V_n

• V_T= V₁ = V₂ = V₃ = V_n

Which of the following is NOT a factor affecting the capacitance of a capacitor

• Dielectric in between plates

• Distance between plates

• Area of each plate

• Electric Constant of plates

How much charge can be accumulated in a 50µF capacitor connected to a 10 V battery

• 250 µC

• 500 µC

• 750 µC

• 1000 µC

What is the equivalent capacitance in this circuit?

• 6 F

• 600 F

• 6 nF

• 60 F