@@21239 lol, i also have practicals today, so for absolute uncertainty, Its simple, your gonna take half of the smallest division, for example for a meter rule, since 0.1 is the smallest division, half of 0.1 is 0.05 +or- is the absolute uncertainty.
Due to the limited time (as your practical is tomorrow), I shall share these in words: 1. Make sure ammeter is connected to either positive of power supply/battery/cell. 2. For voltmeter, make sure it is being connected last. Connect it parallel. How? positive terminal is connected to wire which is being connected to positive terminal of cell/battery/power supply and vice versa. 3. make sure tighten all your connections to avoid fluctuations of ammeter and voltmeter. 4. disconnect the circuit after each reading for 2 seconds--to avoid over heating wires. (which causes your readings to be inaccurate)
if you repeat your experiments, you can record your absolute uncertainty by half, Examples of instruments: Metre rule, analogue ammeter, analogue voltmeter, triple beam balance etc.
#physics #alevelstudents #alevelpractical #alevelphysics #examstips #exams
Could u do another revision video on paper 1 😢😢
absolutely YES
May you please do a video on Paper 1 mcq, with tips/common questions that you predict could come up. Much like your final boost video!
no problem
Thanks so much for the useful tips
Happy to help!
TYSM TEACHER
Thanks so much for trusting me
This video is lifesaver😭 , my practical exam starts after 2 hours.
Pleeease I have a question, for absolute uncertainty when do u use the half minimum reading? Like 0.05 for mete ruler ?
@@21239 lol, i also have practicals today, so for absolute uncertainty, Its simple, your gonna take half of the smallest division, for example for a meter rule, since 0.1 is the smallest division, half of 0.1 is 0.05 +or- is the absolute uncertainty.
ALL the very best to you!!!!
Thank you so much ma’am this was very helplful my practical exam starts in 2 hrs
wow, I am so happy that it helped. Pray hard for your excellent result!!!
Hi ma’am, just want to come back and say thanks, the paper went really well because of you! :)
wow, that really makes my day. thanks so much for your trust. My best wishes to you! May you always be successful !
Thanks a bunch it helped me alot
Thanks so much for your support
Helle, can you pls show some circuit setup and some mistakes with circuit set up. My o/n p34 is on Tuesday pls pls pls. Can u give us a tip
Due to the limited time (as your practical is tomorrow), I shall share these in words:
1. Make sure ammeter is connected to either positive of power supply/battery/cell.
2. For voltmeter, make sure it is being connected last. Connect it parallel. How? positive terminal is connected to wire which is being connected to positive terminal of cell/battery/power supply and vice versa.
3. make sure tighten all your connections to avoid fluctuations of ammeter and voltmeter.
4. disconnect the circuit after each reading for 2 seconds--to avoid over heating wires. (which causes your readings to be inaccurate)
mam are really soo brilliant 👑
fow which instruments do we calculate absolute uncertainty by halving the least count?
if you repeat your experiments, you can record your absolute uncertainty by half, Examples of instruments: Metre rule, analogue ammeter, analogue voltmeter, triple beam balance etc.
For example when i get reading from the ammeter what should the unit be mA as it is in the circuit or Change it to Ampere
Plz reply my exam is tomorrow plzzz
you can put in mA or A, unless the question stated it has to be in mA
is it okay to take more than two readings for the time taken?
Yes it always is if you know you have plenty of time to attempt the paper
yes, repetition is to ensure accuracy of data.😀
@@kayceerae7889 You are definitely CORRECT!