Circuit Diagrams and Circuit Components Quiz
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5 questions, one answer each
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1. Why are standard symbols used in circuit diagrams?
- A. To make circuits look decorative
- B. So circuits can be consistently drawn and interpreted by anyone
- C. Because real components look like the symbols
- D. To hide how the circuit works
2. What happens to the resistance of an NTC thermistor as its temperature increases?
- A. It increases
- B. It decreases
- C. It stays the same
- D. It becomes infinite
3. How does a diode behave when connected in reverse bias?
- A. It conducts easily
- B. It blocks current almost completely
- C. It emits light
- D. It behaves like a voltmeter
4. How should an ammeter be connected to correctly measure the current through a lamp?
- A. In parallel with the lamp
- B. In series with the lamp
- C. Directly across the cell only
- D. It should not be connected while current flows
5. In a parallel circuit, how does current behave compared to a series circuit?
- A. It is the same at every point in the circuit
- B. It can take more than one path through separate branches
- C. It cannot flow at all
- D. It only flows through the largest resistor