WAEC Physics 2017 Objective — Question 42
Question 42 of 50 from the West African Examinations Council (WAEC) Physics 2017 Objective paper, with the correct answer and a full explanation.
Advertisement
In order to prevent bar magnets from losing their strength, they are stored with keepers such that the two bars are placed with A like poles facing each other and the keepers placed at their ends. B. like poles facing each other and the keepers placed between them.
- A. A. like poles facing each other and the keepers placed at their ends
- B. B. like poles facing each other and the keepers placed between them
- C. C. unlike poles facing each other and the keepers placed at their endsCorrect
- D. D. unlike poles facing each other and the keepers placed between them
Explanation
In order to prevent bar magnets from losing their strength, they are stored in pairs with keepers such that the two bars are placed with unlike poles facing each other and the keepers placed between them.
Advertisement
Sign up free to unlock
- Score tracking
- Practice history
- Saved questions
- Progress dashboard
- Personalized sessions
- Weak-topic breakdown
…and/or go further with premium services and No Ads.