Flashcards in Termonology Deck (32):

1

## Why are voltage sources sometimes connected in series?

### requires more voltage

2

## Why are voltage sources sometimes connected in parallel?

### To increase current

3

## what happens when voltage sources are incorrectly connected in parallel?

### the voltage cancels

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?

### smaller

5

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

### voltage is equal across the circuit

6

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

### line current=measures add together

7

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

### it would decrease

8

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

### increase

9

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

### decrease

10

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

### branch and line

11

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

### decrease and increase

12

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

### voltage

13

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

### decrease and increase

14

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

### current and resistance

15

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

### lower

16

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

### voltage and current

17

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

### product and sum

18

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

### parallel

19

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

### current decreases

20

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

### current increases

21

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

### does not flow

22

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

### it decreases

23

## Kirchoffs voltage drop law?

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

24

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

### voltage

25

## what can be moved from circuit to circuit?

### resistance

26

## Is power the same sum in parallel and series?

### No

27

## Overload fuses protect against what?

### too much current

28

## over current fuses protect against what?

### overloads or short circuits

29

## Potentiometer?

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

30

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

###
MALT

material

area

length

temperature

31

## the wheatstone bridge is most commonly used for measuring?

### measuring accurate resistance

32