Termonology

Question 1

Why are voltage sources sometimes connected in series?

Answer 1

requires more voltage

Question 2

Why are voltage sources sometimes connected in parallel?

Answer 2

To increase current

Question 3

what happens when voltage sources are incorrectly connected in parallel?

Answer 3

the voltage cancels

Question 4

when voltage sources are connected series opposing , is the sum of the two sources larger or smaller than either of the two sources individually?

Answer 4

smaller

Question 5

what is the relationship between the applied voltage and the load voltage in a parallel circuit?

Answer 5

voltage is equal across the circuit

Question 6

what is the relationship between the line current and the branch currents in a parallel circuit?

Answer 6

line current=measures add together

Question 7

what would happen to the total line current if an open circuit occurred in one of the loads?

Answer 7

it would decrease

Question 8

what would happen to the total line current if a short circuit occurred in one of the loads?

Answer 8

increase

Question 9

the net resistance of a circuit will __________ as more resistors are connected in parallel

Answer 9

decrease

Question 10

In a parallel circuit, the sum of the _______ currents equals the ________ current

Answer 10

branch and line

Question 11

If an open develops in one branch of a parallel circuit , the line current will _______ and the total circuit resistance will ________

Answer 11

decrease and increase

Question 12

The ________ drop across each branch of a parallel circuit is the same

Answer 12

voltage

Question 13

In a parallel circuit, increasing the number of branches will cause the circuit resistance to _______ and the circuit current to _______

Answer 13

decrease and increase

Question 14

If a short develops across one branch of a parallel circuit in a combination circuit then the _______ increases and the _________ decreases

Answer 14

current and resistance

Question 15

In a parallel circuit , the total resistance is always _______ than the lowest branch resistance

Answer 15

lower

Question 16

Whether dealing with a series or a parallel circuit, the total circuit resistance can be found by dividing the total _______ by the total _________

Answer 16

voltage and current

Question 17

A simple formula for determining the net resistance of “two resistors” in parallel is by using the ________ over the ________ method

Answer 17

product and sum

Question 18

In residential circuit wiring, light outlets and receptacles are connected in _________

Answer 18

parallel

Question 19

what happens to the current in a series circuit if you add a resistor?

Answer 19

current decreases

Question 20

what happens to the current in a parallel circuit if you add a resistor?

Answer 20

current increases

Question 21

What happens to the current in a series circuit if you open a resistor?

Answer 21

does not flow

Question 22

what happens to the current in a parallel circuit if you open a resistor bank

Answer 22

it decreases

Question 23

Kirchoffs voltage drop law?

Answer 23

The sum of all voltages within a closed loop must be equal to zero

Question 24

In a parallel circuit what is the component that stays the same for every branch?

Answer 24

voltage

Question 25

what can be moved from circuit to circuit?

Answer 25

resistance

Question 26

Is power the same sum in parallel and series?

Answer 26

No

Question 27

Overload fuses protect against what?

Answer 27

too much current

Question 28

over current fuses protect against what?

Answer 28

overloads or short circuits

Question 29

Potentiometer?

Answer 29

connected in parallel like a voltmeter and rheostats always connected in series

Question 30

what 4 factors make up resistance in a piece of wire?

Answer 30

``` MALT material area length temperature ```

Question 31

the wheatstone bridge is most commonly used for measuring?

Answer 31

measuring accurate resistance

Question 32

equation to find the unknown in a bridge circuit?

Answer 32

R1 x Rx = R2 x R3