Capacitor Quiz

What is the function of a capacitor in an electronic circuit?

• Generate heat in the circuit

• Convert electrical energy into mechanical energy

• Amplify the electrical signal

• Store and release electrical energy

Which type of capacitor is known for its small size and high capacitance?

• Ceramic capacitor

• Tantalum capacitor

• Electrolytic capacitor

• Film capacitor

What is the formula for calculating the capacitance of a capacitor?

• C = I/V

• C = V/Q

• C = Q/V

• C = Q/I

In a series circuit, how do the capacitances of capacitors add up?

• Exponentially

• Inversely

• Randomly

• Directly

What is the purpose of using dielectric materials in capacitors?

• To decrease the capacitance and reduce the risk of electrical breakdown.

• To increase the capacitance and reduce the risk of electrical breakdown.

• To decrease the capacitance and increase the risk of electrical breakdown.

• To have no effect on the capacitance and increase the risk of electrical breakdown.

What is the energy stored in a capacitor with a capacitance of 10μF and a voltage of 12V?

• 7.2 mJ

• 0.72 mJ

• 1.2 mJ

• 120 mJ

What happens to the charge stored in a capacitor when the voltage across it is doubled?

• The charge stored in the capacitor is halved.

• The charge stored in the capacitor doubles.

• The charge stored in the capacitor becomes zero.

• The charge stored in the capacitor remains the same.

In a parallel circuit, how do the capacitances of capacitors add up?

• They subtract from each other

• They add up directly

• They multiply with each other

• They have no effect on each other

What is the unit of capacitance?

• Newton (N)

• Joule (J)

• Farad (F)

• Ohm (Ω)

What is the formula for calculating the energy stored in a capacitor?

• E = 0.5 * C * V^2

• E = C / V

• E = V / C

• E = C * V