Capacitor C1 and C2 are connected in parallel. The equivalent capacitance is given by:

A) C1C2/(C1 + C2) B) (C1 + C2)/C1C2 C) 1/(C1 + C2) D) C1/C2 E) C1 + C2 A) C1C2/(C1 + C2) B) (C1 + C2)/C1C2 C) 1/(C1 + C2) D) C1/C2 E) C1 + C2

A parallel-plate capacitor has a plate area of 0.2 m2 and a plate separation of 0.1 mm. To obtain an electric field of 2.0 * 106 V/m between the plates, the magnitude of the charge on each plate should be:

A) 3.5 * 10-6 C B) 7.1 *10-6 C C) 1.4 *10-5 C D) 1.8 * 10-5 C E) 8.9 *10-5 C A) 3.5 * 10-6 C B) 7.1 *10-6 C C) 1.4 *10-5 C D) 1.8 * 10-5 C E) 8.9 *10-5 C

Exam 25: Capacitance

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Two identical capacitors are connected in series and two, each identical to the first, are connected in parallel. The equivalent capacitance of the series connection is ________ the equivalent capacitance of parallel connection.

(Multiple Choice)

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Question 41

Capacitor C₁ and C₂ are connected in parallel. The equivalent capacitance is given by:

(Multiple Choice)

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Question 42

A charged capacitor stores 10 C at 40 V. Its stored energy is:

(Multiple Choice)

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Question 43

There are approximately 10 explosions in the US every year due to agricultural grain (corn and soybean) dust. Why is corn dust so dangerous?

(Multiple Choice)

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Question 44

The capacitance of a spherical capacitor with inner radius a and outer radius b is proportional to:

(Multiple Choice)

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Question 45

Two capacitors are identical except that one is filled with air and the other with oil. Both capacitors carry the same charge. The ratio of the electric fields E_air/E_oil is:

(Multiple Choice)

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Question 46

Two parallel-plate capacitors with the same plate separation but different capacitance are connected in parallel to a battery. Both capacitors are filled with air. The quantity that is NOT the same for both capacitors when they are fully charged is:

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Question 47

A 2- $\mu$ F and a 1- $\mu$ F capacitor are connected in series and charged by a battery. They store energies P and Q, respectively. When disconnected and charged separately using the same battery, they have energies R and S, respectively. Then:

(Multiple Choice)

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Question 48

One of the materials listed below is to be placed between two identical metal sheets, with no air gap, to form a parallel-plate capacitor. Which produces the greatest capacitance?

(Multiple Choice)

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Question 49

A parallel-plate capacitor has a plate area of 0.3 m² and a plate separation of 0.1 mm. If the charge on each plate has a magnitude of 5 *10^-6 C then the force exerted by one plate on the other has a magnitude of about:

(Multiple Choice)

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Question 50

A parallel-plate capacitor C has a charge Q. The actual charges on its plates are:

(Multiple Choice)

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Question 51

A dielectric slab is slowly inserted between the plates of a parallel plate capacitor while the capacitor is connected to a battery. As it is being inserted:

(Multiple Choice)

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Question 52

A battery is used to charge a parallel combination of two identical capacitors. If the potential difference across the battery terminals is V and the total charge Q flows through the battery during the charging process then the charge on the positive plate of each capacitor and the potential difference across each capacitor are:

(Multiple Choice)

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Question 53

The plate areas and plate separations of five parallel plate capacitors are Rank these according to their capacitances, least to greatest.

(Multiple Choice)

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Question 54

A parallel-plate capacitor has a plate area of 0.30 m² and a plate separation of 0.10 mm. If the charge on each plate has a magnitude of 5.0 *10^-6 C, what is the energy density in its electric field?

(Multiple Choice)

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Question 55

The units of capacitance are equivalent to:

(Multiple Choice)

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Question 56

A battery is used to charge a parallel-plate capacitor, after which it is disconnected. Then the plates are pulled apart to twice their original separation. This process will double the:

(Multiple Choice)

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Question 57

The capacitance of a parallel-plate capacitor is:

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Question 58

A parallel-plate capacitor has a plate area of 0.2 m² and a plate separation of 0.1 mm. To obtain an electric field of 2.0 * 10⁶ V/m between the plates, the magnitude of the charge on each plate should be:

(Multiple Choice)

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Question 59

Which of the following is not a dielectric?

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Question 60

Showing 41 - 60 of 61

Exam 25: Capacitance

Two identical capacitors are connected in series and two, each identical to the first, are connected in parallel. The equivalent capacitance of the series connection is ________ the equivalent capacitance of parallel connection.

Capacitor C1 and C2 are connected in parallel. The equivalent capacitance is given by:

A charged capacitor stores 10 C at 40 V. Its stored energy is:

There are approximately 10 explosions in the US every year due to agricultural grain (corn and soybean) dust. Why is corn dust so dangerous?

The capacitance of a spherical capacitor with inner radius a and outer radius b is proportional to:

Two capacitors are identical except that one is filled with air and the other with oil. Both capacitors carry the same charge. The ratio of the electric fields Eair/Eoil is:

Two parallel-plate capacitors with the same plate separation but different capacitance are connected in parallel to a battery. Both capacitors are filled with air. The quantity that is NOT the same for both capacitors when they are fully charged is:

A 2- μ\muμ F and a 1- μ\muμ F capacitor are connected in series and charged by a battery. They store energies P and Q, respectively. When disconnected and charged separately using the same battery, they have energies R and S, respectively. Then:

One of the materials listed below is to be placed between two identical metal sheets, with no air gap, to form a parallel-plate capacitor. Which produces the greatest capacitance?

A parallel-plate capacitor has a plate area of 0.3 m2 and a plate separation of 0.1 mm. If the charge on each plate has a magnitude of 5 *10-6 C then the force exerted by one plate on the other has a magnitude of about:

A parallel-plate capacitor C has a charge Q. The actual charges on its plates are:

A dielectric slab is slowly inserted between the plates of a parallel plate capacitor while the capacitor is connected to a battery. As it is being inserted:

The plate areas and plate separations of five parallel plate capacitors are Rank these according to their capacitances, least to greatest.

A parallel-plate capacitor has a plate area of 0.30 m2 and a plate separation of 0.10 mm. If the charge on each plate has a magnitude of 5.0 *10-6 C, what is the energy density in its electric field?

The units of capacitance are equivalent to:

A battery is used to charge a parallel-plate capacitor, after which it is disconnected. Then the plates are pulled apart to twice their original separation. This process will double the:

The capacitance of a parallel-plate capacitor is:

A parallel-plate capacitor has a plate area of 0.2 m2 and a plate separation of 0.1 mm. To obtain an electric field of 2.0 * 106 V/m between the plates, the magnitude of the charge on each plate should be:

Which of the following is not a dielectric?

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Capacitor C₁ and C₂ are connected in parallel. The equivalent capacitance is given by:

Two capacitors are identical except that one is filled with air and the other with oil. Both capacitors carry the same charge. The ratio of the electric fields E_air/E_oil is:

A 2- $\mu$ F and a 1- $\mu$ F capacitor are connected in series and charged by a battery. They store energies P and Q, respectively. When disconnected and charged separately using the same battery, they have energies R and S, respectively. Then:

A parallel-plate capacitor has a plate area of 0.3 m² and a plate separation of 0.1 mm. If the charge on each plate has a magnitude of 5 *10^-6 C then the force exerted by one plate on the other has a magnitude of about:

A parallel-plate capacitor has a plate area of 0.30 m² and a plate separation of 0.10 mm. If the charge on each plate has a magnitude of 5.0 *10^-6 C, what is the energy density in its electric field?

A parallel-plate capacitor has a plate area of 0.2 m² and a plate separation of 0.1 mm. To obtain an electric field of 2.0 * 10⁶ V/m between the plates, the magnitude of the charge on each plate should be: