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Connection of Resistors and Cells in a DC Circuit Lowersixth Science Physics
 

Froggy Jumps

Connection of Resistors and Cells in a DC Circuit Lowersixth Science PhysicsOnline version

Series/parallel resistors and potential dividers

by YAKILI LMS
1

In series, how does total resistance compare to individual resistances?

2

In a parallel circuit, the total resistance is:

3

What happens to total resistance when a resistor is added in series?

4

What happens to current in a series circuit when resistance increases?

5

In parallel, what happens to total current when one branch is removed?

6

Voltage across resistors in a series circuit with a fixed supply is:

7

Voltage across resistors in a parallel circuit is:

8

How is equivalent resistance of two equal resistors in parallel?

9

If R1 and R2 are in series, equivalent resistance is:

10

If R1 and R2 are in parallel, equivalent resistance is:

11

A potential divider consists of:

12

The output voltage of a potential divider depends on:

13

Increasing the bottom resistor in a potential divider will:

14

A load connected to a potential divider is:

15

What is the effect of adding a load to a divider on output voltage?

16

Series resistors share the supply voltage in proportion to:

17

Parallel resistors share current in proportion to:

18

Total current in a series circuit equals:

19

Total current in a parallel circuit equals:

20

What is the unit of resistance?

21

Which component drops more voltage in a series chain if its resistance is higher?

22

If a 12 V source powers two equal resistors in parallel, each resistor gets:

23

If R1 = 4 Ω and R2 = 6 Ω in series, total R =

24

If R1 = 4 Ω and R2 = 6 Ω in parallel, Req =

25

Power dissipated by a resistor is P = V^2/R. Doubling R with same V causes:

26

Replacing two resistors in series with one resistor results in:

27

Replacing two resistors in parallel with one resistor results in:

28

In a divider feeding a high impedance meter, output voltage:

29

Which equation is for parallel resistance of two unequal resistors?

30

Which arrangement gives the smallest possible total resistance?

31

If one branch in parallel opens, total resistance:

32

The current through a series string is:

33

The current through parallel branches:

34

The symbol Ohm is used to denote:

35

Potential divider is sometimes called:

36

A voltmeter placed across the divider's output draws:

37

If you need a stable voltage with varying load, you should:

38

What happens to current in a series circuit if one resistor opens?

39

Which is true about resistors in series with the same current?

40

Which statement about a resistor in parallel with another?

41

What is the effect of a very high load resistance on divider output?

42

Two equal resistors in parallel give:

43

The unit for electrical resistance is:

44

Current through a single resistor in a parallel network is:

45

If you double all resistors in series, total resistance:

46

What does a potential divider primarily control?

47

In a divider, increasing bottom resistance while keeping top constant:

48

What is true about power in series vs parallel?

49

Which device is used to measure potential without drawing current?

50

Which configuration yields higher current for the same supply?

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