Short Response Questions | Chapter 16 Current Electricity |10 Physics |NBF New Book| FBISE
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Short Response Questions | Chapter 16 Current Electricity |10 Physics |NBF New Book| FBISE
1. Why is copper preferred over silver for household wiring, considering cost, conductivity and durability?
2. Why free electrons in metals don't create a current without a potential difference?
3. How conventional and actual current directions affect circuit behaviour, and why conventional current is important in diagrams and calculations.
4. Compare emf and potential difference, and why this distinction matters in circuit analysis.
5. How is a current-carrying wire electrically neutral?
6. Would the lights still work if a car battery's positive and negative terminals were interchanged?
7. Evaluate the limits of Ohm's law for different materials, especially under extreme conditions.
8. How does a wire's shape affect its resistance, whether bending or changing it?
9. The temperature coefficient of copper is 0.004 C−1. How does this affect copper's performance in electrical systems under varying temperatures?
10. How would you define fluid-resistance in a water-carrying pipe?
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