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Electric Charge and Capacitance Quiz

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Questions and Answers

What is the unit of capacitance?

Coulomb
Farad (correct)
Volt
Ampere

What is the formula to calculate the capacitance of a parallel plate capacitor?

C = εοAd
C = εοd/A
C = εοA/d (correct)
C = εο/A/d

What is the purpose of a capacitor in an electric circuit?

To generate electricity
To increase voltage
To temporarily store electric charges (correct)
To convert AC to DC

What is the effect of increasing the area of the plates of a parallel plate capacitor on its capacitance?

It increases the capacitance (A) Signup and view all the answers

What is the ratio of the magnitude of the charge on either conductor to the magnitude of the potential difference between the conductors?

Capacitance (C) Signup and view all the answers

What is the dielectric material in a capacitor that separates the two plates?

An insulator (B) Signup and view all the answers

What is the formula to calculate the capacitance of a parallel-plate capacitor?

C = εo A / d (C) Signup and view all the answers

What is the unit of the dielectric constant εo?

Coulombs per Newton-meter squared (C/Nm^2) (D) Signup and view all the answers

A parallel-plate capacitor has a capacitance of 2.213 × 10^−11 F. If it is connected to a 9-volt battery, what is the charge accumulated on the plates?

1.992 × 10^−10 C (D) Signup and view all the answers

What is the area of the square metal plates in the given problem?

2.5 × 10^−3 m^2 (D) Signup and view all the answers

What is the distance between the two square metal plates?

0.001 m (C) Signup and view all the answers

What is the formula to calculate the charge on a capacitor?

Q = CV (D) Signup and view all the answers

What is the correct formula for calculating the capacitance of a parallel-plate capacitor?

$C = \frac{k \in{}_{o}A}{d}$ (D) Signup and view all the answers

What is the purpose of a circuit diagram?

To show the path of the real circuit (B) Signup and view all the answers

What is the unit of the permittivity of free space?

Coulomb per Newton meter (C/N·m) (B) Signup and view all the answers

What is the purpose of a dielectric material in a parallel-plate capacitor?

To increase the capacitance of the capacitor (B) Signup and view all the answers

What is the unit of capacitance?

Farad (F) (C) Signup and view all the answers

What is the dielectric constant (k) of a material?

A dimensionless quantity (B) Signup and view all the answers

Electric Charge and Capacitance Quiz

Choose a study mode

Podcast

Questions and Answers

What is the unit of capacitance?

What is the formula to calculate the capacitance of a parallel plate capacitor?

What is the purpose of a capacitor in an electric circuit?

What is the effect of increasing the area of the plates of a parallel plate capacitor on its capacitance?

What is the ratio of the magnitude of the charge on either conductor to the magnitude of the potential difference between the conductors?

What is the dielectric material in a capacitor that separates the two plates?

What is the formula to calculate the capacitance of a parallel-plate capacitor?

What is the unit of the dielectric constant εo?

A parallel-plate capacitor has a capacitance of 2.213 × 10^−11 F. If it is connected to a 9-volt battery, what is the charge accumulated on the plates?

What is the area of the square metal plates in the given problem?

What is the distance between the two square metal plates?

What is the formula to calculate the charge on a capacitor?

What is the correct formula for calculating the capacitance of a parallel-plate capacitor?

What is the purpose of a circuit diagram?

What is the unit of the permittivity of free space?

What is the purpose of a dielectric material in a parallel-plate capacitor?

What is the unit of capacitance?

What is the dielectric constant (k) of a material?

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