CH 6_BOOK_CAPACITORS AND INDUCTORS

Question 1

Inductors in series and parallel are combined in the same way as?

Answer 1

Resistors

Question 2

A capacitor consists of two conducting plates separated by an?

Answer 2

Insulator (or dielectric)

Question 3

What is the formula for charge (q) in terms of capacitance?

Answer 3

Question 4

What is capacitance?
1 Farad is equal to?

Answer 4

Capacitance is the amount of charge stored per plate for a unit voltage difference in a capacitor.

1 farad = 1 coulomb/volt.

Question 5

What is the formula for capacitance?

Answer 5

A is the surface area of each plate, d is the distance between the plates, and ϵ is the permittivity of the dielectric material between the plates.

Question 6

For a capacitor to carry current, its voltage must vary with time. Hence, for constant (DC) voltage, the current is?

Answer 6

Zero.

Question 7

For a capacitor, what is the formula for current?

Answer 7

Question 8

For a capacitor, what is the formula for voltage?

Answer 8

Question 9

What is the formula for the instantaneous power delivered to a capacitor?

Answer 9

Question 10

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

Answer 10

Question 11

In DC conditions, a capacitor is a(n) __________ circuit.

Answer 11

Open

Question 12

Does the ideal capacitor dissipate energy?

Answer 12

The ideal capacitor does not dissipate energy. It takes power from the circuit when storing energy in its field and returns previously stored energy when delivering power to the circuit.

Question 13

For capacitors in parallel, what is the formula for equivalent current?

Answer 13

Question 14

For capacitors in parallel, what is the formula for equivalent capacitance?

Answer 14

Question 15

For capacitors in series, what is the formula for equivalent voltage?

Answer 15

Question 16

For capacitors in series, what is the formula for equivalent capacitance?

Answer 16

Question 17

What is an inductor? What does it consist of?

Answer 17

An inductor is a passive element designed to store energy in its magnetic field.

It consists of a coil of conducting wire.

Question 18

For an inductor, what is the formula for voltage?

Answer 18

Question 19

For an inductor to have voltage across its terminals, its current must vary with time. Hence, for constant current through the inductor, the voltage is?

Answer 19

Zero.

Question 20

What is inductance?

Answer 20

Inductance is the property whereby an inductor exhibits opposition to the change of current flowing through it, measured in henrys (H).

Question 21

What is the formula for inductance?

Answer 21

N is the number of turns, ℓ is the length, A is the cross-sectional area, and μ is the permeability of the core.

Question 22

For an inductor, what is the formula for current?

Answer 22

Question 23

What is the formula for the instantaneous power delivered to an inductor?

Answer 23

Question 24

What is the formula for the energy stored in an inductor?

Answer 24

Question 25

In DC conditions, an inductor is a(n) __________ circuit.

Answer 25

Short

Question 26

For inductors in series, what is the formula for equivalent voltage?

Answer 26

Question 27

For inductors in series, what is the formula for equivalent inductance?

Answer 27

Question 28

For inductors in parallel, what is the formula for equivalent current?

Answer 28

Question 29

For inductors in parallel, what is the formula for equivalent inductance?

Answer 29

Question 30

VIEW ONLY: Table of formulas for capacitors and inductors

Answer 30