Waec 2016 Physics Practical ALT. B Answers – May/June Expo - Gidifans

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Physics PrAt AL B Ans
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CLICK HERE TO VIEW FULL IMAGE NO1 Graph

1)
S/n 1,2,3,4,5,6
v(cm) 20.00,20.00,20.00,20.00,20.00,20.00
L(cm) 120.00,100.00,90.00,80.00,70.00,60.00
t. 42.00,38.00,37.00,36.00,34.00,32.00
T 2.10,1.90,1.85,1.80,1.70,1.6.
sqrL 10.95,10.00,9.49,8.94,8.37,7.75
L+y 140.00,120.00,110.00,100.00,90.00 ,80.00
sqrL+y 11.83,10.95,10.49,10.00,9.49,8.94
x=(sqrL+y+sqrL) 22.80,20.95,19.89,18.94 ,17.86,16.69

1bi)
Periodic is a motion repeated in
equal intervals of time.

1xii)
i) I avoided conical oscillation
ii) I avoided drought
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(3)
s/n 1,2,3,4,5,6
(cm) 20,30,40,50,60,80
v/v 0.15,0.25,0.35,040,0.50,0.70
x-1(cm)-1 0.500,0.033,0.025,0.020,0.017, 0.013
v-1/v-1 6.667,4.000,2.857,2.500,2.000,1.429

practaltbphyCLICK HERE TO VIEW FULL IMAGE
3)
i) I ensured that the terminals where firmly connected
ii) I avoided zero error on the metre rule
3b)
i)ohms law does not apply in valves and diode

AAAB
3bii)
1/RT = 1/R1 + 1/R2 = 1/2 + 1/3 = r
3 + 2/6 =5/6
3biii)
R=6/5n, but V = 1R =1*6/5 = 6/5v

current in 2R restistor =6/5/2 =3/5A or 0.6A

current in 3R resistor =6/5/3 =2/5 = 0.4A


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25 Comments
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