https://padlet.com/ang_joo_liak/17_magnetism Made with an aura of mystery en-us 2019-05-09 01:39:15 UTC 2023-03-16 10:01:03 UTC hello@padlet.com https://imgglb.padletcdn.com/v13/image?t=g_auto&url=https%3A%2F%2Fpadlet.net%2Ficons%2Fpng%2F1f9f2.png ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/358332316 2019-05-09 05:02:55 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/358332316 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/358332440 2019-05-09 05:03:59 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/358332440 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/373203915 How to solve Q27?]]> 2019-08-05 00:45:17 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/373203915 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/373204065 How to solve Q28?]]> 2019-08-05 00:46:19 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/373204065 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/373204289 May i check if nickel and cobalt are soft magnetic materials?]]> 2019-08-05 00:48:06 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/373204289 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/373205690 2019-08-05 01:00:54 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/373205690 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/373208702 Note: red in this diagram is "south pole"]]> 2019-08-05 01:25:58 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/373208702 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/373532223 Does the magnetic field lines play a part in this. Like the direction of the arrows from north to south (does it mean anything in this situation).]]> 2019-08-07 05:57:36 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/373532223 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/373532676 How does the magnetic field lines from magnet impact this? And why the difference between the top of bar n bottom of bar. ]]> 2019-08-07 06:03:45 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/373532676 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/373544719 Is there a more logical explanation, like is it affected by the poles of the magnet?]]> 2019-08-07 08:14:40 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/373544719 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/373544992 Fig. 2: The side labelled N is clockwise?]]> 2019-08-07 08:19:08 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/373544992 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/373545389 Why A?]]> 2019-08-07 08:25:58 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/373545389 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/373545798 What does the magnetic field mean though? Like it’s pointing towards the south because of the direction of the arrow?]]> 2019-08-07 08:31:49 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/373545798 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/373546820 2019-08-07 08:45:30 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/373546820 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/373547090 I don’t really get these 2 questions.]]> 2019-08-07 08:48:32 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/373547090 https://padlet.com/ang_joo_liak/17_magnetism/wish/373581874 Laura: demagnetisation - Why is it that when the magnet is slowly withdrawn from the solenoid, the ac needs to be still flowing in the solenoid ]]> 2019-08-07 14:22:01 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/373581874 https://padlet.com/ang_joo_liak/17_magnetism/wish/397237060 Nellie:
Q41 (why answer cannot be D), Q 28, Q67 thank you!


]]> 2019-10-14 02:26:12 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/397237060 7114180031 https://padlet.com/ang_joo_liak/17_magnetism/wish/1542404493 Why do magnetic field lines run from North to South?]]> 2021-05-20 04:38:17 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/1542404493 7114180369 https://padlet.com/ang_joo_liak/17_magnetism/wish/1546688050 When demagnetising a magnet using the electrical method, why must the magnet be removed in the East-West direction?]]> 2021-05-21 05:07:00 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/1546688050 joleeruien https://padlet.com/ang_joo_liak/17_magnetism/wish/1549728065 The answers for example 17.2 include drawing X the neutral point. Is it necessary to draw it? ]]> 2021-05-22 05:31:18 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/1549728065 https://padlet.com/ang_joo_liak/17_magnetism/wish/1556182515 Shanice: Exercises at the back of the Magnetism notes, Q3

Why is the magnetic field strength strongest at Q than at P or R which are on the line itself? 

And how do you judge the strength, like if Q wasn’t an option would S be the greatest then? ]]> 2021-05-25 03:33:55 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/1556182515 7114180301 https://padlet.com/ang_joo_liak/17_magnetism/wish/1556739958 why is the answer C? i thought the SLS says that the north pole of the compass needle is attracted to the magnetic south of the Earth which is the Earth’s geographical North? So shouldn’t the magnet at the pointer be the South seeking pole instead? ]]> 2021-05-25 07:36:10 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/1556739958 https://padlet.com/ang_joo_liak/17_magnetism/wish/1645911430 Why the answer to Q3 is B and not D]]> 2021-07-12 13:16:41 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/1645911430 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/1654614816 Why is it that when demagnetizing an electromagnet have to place in E-W direction? And also why does it have to be slowly drawn out with alternating current still flowing in the solenoid until it is some distance away?]]> 2021-07-19 10:13:22 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/1654614816 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/1660290471 2021-07-25 12:58:25 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/1660290471 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/1660290628 2021-07-25 12:58:56 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/1660290628 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/1737578106 When a magnet is cut into two, will the two resultant smaller magnets be weaker than the original? And if they are cut into different sizes, will the bigger one be stronger than the smaller one? ]]> 2021-09-13 23:30:12 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/1737578106 ang_joo_liak https://padlet.com/ang_joo_liak/17_magnetism/wish/1785563724 may I ask why the string will pull the copper bar ? I thought the iron bar will attract the iron bar upward and the copper bar gets pulled along upward instead of to the right by the spring? ]]> 2021-10-02 06:42:34 UTC https://padlet.com/ang_joo_liak/17_magnetism/wish/1785563724