5.2.3 Electric Circuits - Resistors In Series/Parallel
5. 2. 3 Electric Circuits - Resistors in series/parallel
- 1.3 resistors of 4 ohms are placed in series - what is their combined (equivalent) resistance?
- A.
1 ohm
- B.
3 ohms
- C.
6 ohms
- D.
12 ohms
- E.
24 ohms
- F.
81 ohms
- 2.2 resistors each of 4 ohms are in parallel - what is their combined (equivalent) resistance?
- A.
1 ohm
- B.
2 ohms
- C.
3 ohms
- D.
4 ohms
- E.
6 ohms
- F.
8 ohms
- 3.3 resistors of resistances 4 ohms, 4 ohms and 2 ohms are in parallel with each other. What is their combined resistance?
- A.
1 ohm
- B.
2 ohms
- C.
3 ohms
- D.
4 ohms
- E.
6 ohms
- F.
8ohms
- G.
10 ohms
- 4.What can you say about an ideal Voltmeter?
- A.
Resistance is zero
- B.
Resistance is infinite
- C.
Current is zero
- D.
Current is infinite
- E.
PD is zero
- F.
PD is infinite
- 5.What can you say about an ideal Ammeter?
- A.
Resistance is zero
- B.
Resistance is infinite
- C.
Current is zero
- D.
Current is infinite
- E.
PD is zero
- F.
PD is infinite
- 6.Which sentence below best describes the behaviour of a Thermistor
- A.
High resistance with high light intensity
- B.
Low resistance with high light intensity
- C.
High resistance when it is stretched
- D.
Low resistance when it is stretched
- E.
High resistance when it is hot
- F.
High resistance when it is cool.
- 7.Which sentence below best describes the behaviour of a LDR
- A.
High resistance with high light intensity
- B.
Low resistance with high light intensity
- C.
High resistance when it is stretched
- D.
Low resistance when it is stretched
- E.
High resistance when it is hot
- F.
Low resistance when it is cool.
- 8.Which sentence below best describes the behaviour of a Strain gauge?
- A.
High resistance with high light intensity
- B.
Low resistance with high light intensity
- C.
High resistance when it is stretched
- D.
Low resistance when it is stretched
- E.
High resistance when it is hot
- F.
Low resistance when it is cool.
- 9.Are there any areas of this section on resistors in series and parallel, ammeters and voltmeters and potential dividers which are confusing?
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