d2 Series, Parallel and Series-Parallel Circuits

Question 1

The voltage across all branches of a Parallel circuit is the same because ?

Answer 1

All branches are connected across the voltage source

Question 2

You can find the total current for parallel circuit by

Answer 2

simply adding the individual currents. IT= I1 + I2 + I3 + ….

Question 3

In a series circuit, current will be the same throughout the circuit because ?

Answer 3

There is only one path for current to follow

Question 4

In a series circuit , the current flow will be ?

Answer 4

Will be the same in all parts of the circuit

Question 5

To find the total resistance in a series circuit ,

Answer 5

just add the individual resistance : Rt = R1+ R2+ R3

Question 6

If two or more resistors or consuming devices are placed one after the other

Answer 6

Series circuit

Question 7

A single path for electrons to flow is called

Answer 7

A closed or complete circuit

Question 8

What happens if a circuit is broken as in wire (conductor) being disconnected ?

Answer 8

No current would flow (open circuit)

Question 9

Open circuit =

Answer 9

infinite circuit resistance

Question 10

Circuits are?

Answer 10

The pathway along which electrons move to produce various effects

Question 11

A short circuit means that

Answer 11

There is a path of low or lower resistance to electron flow that is frequently unintended or accidental

Question 12

Fuses are placed in

Answer 12

In series with the consuming devices

Question 13

Fuses are used to prevent

Answer 13

the damaged done by excess current flowing in a circuit

Question 14

Ground

Answer 14

zero voltage point of the system

Question 15

Earth Ground

Answer 15

where all of the wiring grounds are connected to. Is used to guide electrical current away from panels and equipment.

Question 16

Chassis

Answer 16

the frame of the equipment where the ground wire in an electrical cord us connected to.

Question 17

A Short circuit Is something to be avoided because it can

Answer 17

It can cause a fire or overheating

Question 18

A loose connection can cause

Answer 18

An Open circuit

Question 19

The total resistance (RT) of a parallel circuit cannot be found

Answer 19

by adding the resistors values

Instead use the 2nd function x-1 calc values do the same to the answer

Question 20

Current in a parallel circuit depends on ?

Answer 20

The resistance of the branch

Question 21

A load resistance is inversely proportional to current because ?

Answer 21

If a loads resistance were to decrease , the current flowing in the circuit would increase

Question 22

Power is defined as

Answer 22

The rate at which work is done

P = I x E

Question 23

Total power consumed in the circuit is equal to the

Answer 23

sum of the individual power consumptions (PT = Pl + P2 + P3… + PN).

Question 24

Any complex combination circuit can be reduced to

Answer 24

an equivalent resistance or simple circuit.

Question 25

After the total resistance of a combination circuit is reduced to a simple series or parallel circuit, the source voltage

Answer 25

can be applied and the total current value determined.

Question 26

Kirchhoff’s current law states that the total current entering a junction or parallel circuit is

Answer 26

equal to the current leaving that junction or parallel circuit.

Question 27

In a parallel circuit, the voltage is

Answer 27

equal through the circuit ((ET = El = E2 = E3… = EN).

Question 28

The total resistance in a series circuit is equal to

Answer 28

The sum of all the resistance values in the circuit (RT = Rl + R2 + R3… + RN).

Question 29

The source voltage in a series circuit is equal to

Answer 29

the sum of the voltage drops (ET = El + E2 + E3… + EN).

Question 30

The device used to produce electricity by heat is the

Answer 30

Thermocouple