floppyspud
New Member
- Joined
- May 4, 2024
- Messages
- 2
- Gender
- Male
- HSC
- 2024
In this question of the 2017 HSC:
![1714885351128.png](/data/attachments/43/43053-701a10c59f70fcf03755d2925aa094dd.jpg)
I'm unsure how to find both points' polarity with the direction of movement not given, nor do I know how to derive the direction of movement from the rest of the question. Googling it isn't any help, as it only comes up with examples of a given movement. Any help is appreciated, and I'm sorry if I missed something easy.
The answer doesn't give any reasoning other than "consistent with Lenz's law."
![1714885351128.png](/data/attachments/43/43053-701a10c59f70fcf03755d2925aa094dd.jpg)
I'm unsure how to find both points' polarity with the direction of movement not given, nor do I know how to derive the direction of movement from the rest of the question. Googling it isn't any help, as it only comes up with examples of a given movement. Any help is appreciated, and I'm sorry if I missed something easy.
P is positive, Q is negative
The answer doesn't give any reasoning other than "consistent with Lenz's law."