Series and parallel circuits Quiz
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5 questions, one answer each
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1. Two 1.5 V cells are connected end to end in series. What is the total p.d.?
- A. 1.5 V
- B. 0.75 V
- C. 3.0 V
- D. 2.25 V
2. A 3.0 Ω and a 6.0 Ω resistor are connected in parallel. What is the total resistance?
- A. 2.0 Ω
- B. 9.0 Ω
- C. 4.5 Ω
- D. 18 Ω
3. A 5.0 Ω and a 7.0 Ω resistor are connected in series. What is the total resistance?
- A. 35 Ω
- B. 2.9 Ω
- C. 6.0 Ω
- D. 12 Ω
4. An ammeter before two lamps in series reads 0.30 A. What does an ammeter placed after the second lamp read?
- A. 0.15 A
- B. 0.30 A
- C. 0.60 A
- D. 0 A
5. Which is an advantage of wiring lamps in parallel?
- A. The total resistance is higher
- B. The lamps share the p.d., so are dimmer
- C. If one lamp fails, the others stay lit
- D. Less current is drawn from the supply