[b]
NABTEB PHYSICS ANSWERS
1a.
Reading
TABULATE s/n, h/cm, t1/s, t2/s, t/s,
T/s, T^2/S^2
under s/n write:
1
2
3
4
5
under h/cm write:
20.0
40.0
60.0
80.0
100.0
under t1/s write:
46.30
41.85
37.95
33.20
28.85
under t2/s write:
46.0
41.95
38.00
33.35
28.85
under t/s write:
46.15
41.90
37.98
33.28
28390
under T/S write:
2.31
2.10
1.90
1.66
1.45
under T2/S^2 write:
5.340
4.410
3.610
2.960
2.10
Slope, S = change in h / change in
T^2 = Angleh / Andgle T^2
intercept 1 =
Precautions
i. I corrected zero erro on the stop
clock
ii. I avoid conical oscillation
1b.
i. Acceleration due to gravity of an
object (g) is defined as the
aceeleration of the object to the
earth’s gravitional.
It is given as g = 9.81ms
ii. draw
iii. a = v^2/r = 35^2/2.5
a = 490ms^-2
3a. Table of Value
TABULATE s/n, TJ/cm , I/A, V/V
under s/n wrote:
1
2
3
4
5
under TJ/cm write:
40.0
50.0
60.0
70.0
80.0
under I/A write:
0.160
0.165
0.170
0.180
0.200
under V/V write:
0.85
0.70
0.60
0.55
0.44
Slope of hthe graph = Angle T /
Angle V
V =
when I = 0
Precautions
i. I ensured that key is quickly
removed afer each reading to
avoid call being run down.
ii. I corrected zero erros on the
ameter and volmeter readings.
3b.
i. The e.m.f. of a cell us defined
as the p.d between the
tderminals of a cell when it is in
an open current.
It is represented by E measdured
in Volt.
ii.
– Dynamo
– Generator
iii.
E = V + IR
contact for more