• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

Physics paper 34

Messages
878
Reaction score
1,474
Points
153
Hi...just a small question. When you are measuring the emf of a battery you simply set the multimeter to 20V in voltage mode and connect it with the battery ryt?
 
Messages
373
Reaction score
33
Points
28
hmm guys need help in significant figures:

my readings are:
V/V:8.0 V
I/A:0.32
P/W:2.56
R/ohm:25.0
R4/ohm: 3.9*10^5

Guys please check my readings and tell me how many significant figures i should give for each reading
 
Messages
373
Reaction score
33
Points
28
itz most probably a cell with an e.m.f of 18 V

hmm guys need help in significant figures:

my readings are:
V/V:8.0 V
I/A:0.32
P/W:2.56
R/ohm:25.0
R4/ohm: 3.9*10^5

Guys please check my readings and tell me how many significant figures i should give for each reading

can u help me plzzz this is really bothering me
 
Messages
16
Reaction score
3
Points
3
hey when asked to justify that relation often given...I know a method K2-K1/K2+K1/2*100
but what ....when i get <10% the relation is justified or..... what the hell is with it anyone knows it pls reply me ASAP... :s
 
Messages
16
Reaction score
3
Points
3
hey when asked to justify that relation often given...I know a method K2-K1/K2+K1/2*100
but what ....when i get <10% the relation is justified or..... what the hell is with it anyone knows it pls reply me ASAP... :s
oooh sorry i got it just as i posted it in the next thread ...
 
Top