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(3a)
R ohms
R1 = 1ohms R3 = 3ohms
R2 = 2ohms R4 = 4ohms
R5 = 5ohms
V1 = 1.90v
V2 = 2.15v
V3 = 2.3v
V4 = 2.40v
V5 = 2.5v
In a tabular form
Under S/N
1, 2, 3, 4, 5
Under R(ohms )
1.00, 2.00, 3.00, 4.00, 5.00
Under V(v)
1.90, 2.15, 2.30, 2.40, 2.50
Under R^-1(ohms^-1)
1.000, 5.000, 0.333, 0.250, 0.200
Under V^-1(V^-1)
0.5263, 0.465, 0.4347, 0.4167, 0.400
Under R^-1/V^-1
1.900, 1.07, 0.768, 0.5999, 0.500
(3avi)
(i) Ensure tight connections.
(ii) Avoid error due to parallax when reading the voltmeter
(3b)
(i) Length of wire
(ii) Nature of wire
(3bii)
Total resistance,
R = 3 + (3×3)/(3+3)
R = 4.5 ohms
Current, I = V/R
I = 6/4.5
I = 1.33 A
1aix )
i ) I avoided parallax error in reading clock / weight balance
ii) I ensue repeated readings are taken to avoid random error
========================================
3x)
i ) I would ensure that the terminal are well tightened to avoid partial contact
ii) I would obey the connection of positive to positive to negative when connecting to circuit.
(1a)
Pls Tabulate:
xi(cm)|yi(cm)|zi(cm)|W1(Nx10^-2)|W2(Nx10^-2)|u=(w1-w2)(Nx10^-2)|v=(w1-w3)(Nx10-2)
=>1.80|1.50|1.70|3.6|3.00|3.40|0.60|0.20
=>3.80|3.00|3.00|7.6|6.00|6.00|1.60|1.60
=>5.50|4.40|5.00|11.10|8.00|10.00|2.20|1.00
=>7.30|5.90|6.60|14.60|11.80|13.00|2.80|1.40
=>9.20|7.30|8.30|18.40|14.60|16.60|3.80|1.80
=>11.10|8.30|10.00|22.20|16.60|20.00|5.60|2.20
(1b)
Relative density, or specific gravity, is the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material. Specific gravity usually means relative density with respect to water.
(1bii)
Given volume of solid immersed
Vsi =1/2*30cm³
=15cm³
Density of liquid (water)ew= 1g/cm³
Acceleration due to gravity, g = 10m/s²
Upthrust, U= eVsi g
U= 1000*(15*10^-6)*10
U=15*10-²
U=0.15N
Weight of solid =mg
=EsVs g
given: Es=2.4g/cm³ (2400kg/m³)
Vs=30cm (30*10^-6 m³)
g=10m/s²
Weight, w=30*10^-6*2400*10
=72*10-²
=0.72N
Reading on spring balance =W-U
=0.72-0.15
=0.57N
==============================
(2)
In a tabular form
Under S/N
1, 2, 3, 4, 5
Under ACi/cm
7.20, 7.80, 8.10, 8.70, 9.30
Under BCi/cm
2.10, 3.70, 4.30, 5.30, 6.30
Under titai(Φ)
68.0, 48.0, 38.0, 28.0, 20.0
Under U = BC/AC
0.2917, 0.4744, 0.5309, 0.6092, 0.6774
Under cos tita(Φ)
0.3746, 0.6691, 0.7880, 0.8829, 0.9397
(2av)
(i) I would avoid error due to parallax.
(ii) I would ensure right position of ruler while taking readings.
(2bi)
Principal axis is an imaginary line passing through the center of the lens in which the principal force of the lens passes through.
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2018 Waec Gce Physics Practical Questions and Answers is available here, Get verified Physics Practical Waec Gce Question and Answers to free your self from exam bondage. 2018 Waec Gce Exam physics practical Exam runs. 2018 Waec Gce Physics Practical Questions and Answers is available here for you, Read the above articles to get verified Waec Gce Physics Practical Questions and Answers. Exam Expo for Physics Practical is available at 9Jatechs. 2018 Waec Gce Physics Practical Questions and Answers is available here, Get verified Physics Practical Waec Gce Question and Answers to free your self from exam bondage. 2018 Waec Gce Exam physics practical Exam runs.
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2018 Waec Gce Physics Practical Questions and Answers is available here, Get verified Physics Practical Waec Gce Question and Answers to free your self from exam bondage. 2018 Waec Gce Exam physics practical Exam runs. 2018 Waec Gce Physics Practical Questions and Answers is available here for you, Read the above articles to get verified Waec Gce Physics Practical Questions and Answers. Exam Expo for Physics Practical is available at 9Jatechs. 2018 Waec Gce Physics Practical Questions and Answers is available here, Get verified Physics Practical Waec Gce Question and Answers to free your self from exam bondage. 2018 Waec Gce Exam physics practical Exam runs.
R ohms
R1 = 1ohms R3 = 3ohms
R2 = 2ohms R4 = 4ohms
R5 = 5ohms
V1 = 1.90v
V2 = 2.15v
V3 = 2.3v
V4 = 2.40v
V5 = 2.5v
In a tabular form
Under S/N
1, 2, 3, 4, 5
Under R(ohms )
1.00, 2.00, 3.00, 4.00, 5.00
Under V(v)
1.90, 2.15, 2.30, 2.40, 2.50
Under R^-1(ohms^-1)
1.000, 5.000, 0.333, 0.250, 0.200
Under V^-1(V^-1)
0.5263, 0.465, 0.4347, 0.4167, 0.400
Under R^-1/V^-1
1.900, 1.07, 0.768, 0.5999, 0.500
(3avi)
(i) Ensure tight connections.
(ii) Avoid error due to parallax when reading the voltmeter
(3b)
(i) Length of wire
(ii) Nature of wire
(3bii)
Total resistance,
R = 3 + (3×3)/(3+3)
R = 4.5 ohms
Current, I = V/R
I = 6/4.5
I = 1.33 A
1aix )
i ) I avoided parallax error in reading clock / weight balance
ii) I ensue repeated readings are taken to avoid random error
========================================
3x)
i ) I would ensure that the terminal are well tightened to avoid partial contact
ii) I would obey the connection of positive to positive to negative when connecting to circuit.
(1a)
Pls Tabulate:
xi(cm)|yi(cm)|zi(cm)|W1(Nx10^-2)|W2(Nx10^-2)|u=(w1-w2)(Nx10^-2)|v=(w1-w3)(Nx10-2)
=>1.80|1.50|1.70|3.6|3.00|3.40|0.60|0.20
=>3.80|3.00|3.00|7.6|6.00|6.00|1.60|1.60
=>5.50|4.40|5.00|11.10|8.00|10.00|2.20|1.00
=>7.30|5.90|6.60|14.60|11.80|13.00|2.80|1.40
=>9.20|7.30|8.30|18.40|14.60|16.60|3.80|1.80
=>11.10|8.30|10.00|22.20|16.60|20.00|5.60|2.20
(1b)
Relative density, or specific gravity, is the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material. Specific gravity usually means relative density with respect to water.
(1bii)
Given volume of solid immersed
Vsi =1/2*30cm³
=15cm³
Density of liquid (water)ew= 1g/cm³
Acceleration due to gravity, g = 10m/s²
Upthrust, U= eVsi g
U= 1000*(15*10^-6)*10
U=15*10-²
U=0.15N
Weight of solid =mg
=EsVs g
given: Es=2.4g/cm³ (2400kg/m³)
Vs=30cm (30*10^-6 m³)
g=10m/s²
Weight, w=30*10^-6*2400*10
=72*10-²
=0.72N
Reading on spring balance =W-U
=0.72-0.15
=0.57N
==============================
(2)
In a tabular form
Under S/N
1, 2, 3, 4, 5
Under ACi/cm
7.20, 7.80, 8.10, 8.70, 9.30
Under BCi/cm
2.10, 3.70, 4.30, 5.30, 6.30
Under titai(Φ)
68.0, 48.0, 38.0, 28.0, 20.0
Under U = BC/AC
0.2917, 0.4744, 0.5309, 0.6092, 0.6774
Under cos tita(Φ)
0.3746, 0.6691, 0.7880, 0.8829, 0.9397
(2av)
(i) I would avoid error due to parallax.
(ii) I would ensure right position of ruler while taking readings.
(2bi)
Principal axis is an imaginary line passing through the center of the lens in which the principal force of the lens passes through.
.
Subjects for Wednesday, 5th September 2018
Physics 3 (Alternative to Practical Work) >> 9.30am – 12.15pm.
Physics 3 (Alternative to Practical Work) >> 9.30am – 12.15pm.
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Answers delivery via whatsapp for Physics Practical Questions and Answerss is N500 MTN card.
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Note: please do not call our number, simply send message on whatsapp or using SMS
For More Info Whatsapp 08065889844
2018 Waec Gce Physics Practical Questions and Answers is available here for you, Read the above articles to get verified Waec Gce Physics Practical Questions and Answers. Exam Expo for Physics Practical is available at 9Jatechs. 2018 Waec Gce Physics Practical Questions and Answers is available here, Get verified Physics Practical Waec Gce Question and Answers to free your self from exam bondage. 2018 Waec Gce Exam physics practical Exam runs.
Read more >> How To Get 2018 Waec Gce Questions and answers | Aug/Oct Waec Exam
2018 Waec Gce Physics Practical Questions and Answers is available here, Get verified Physics Practical Waec Gce Question and Answers to free your self from exam bondage. 2018 Waec Gce Exam physics practical Exam runs. 2018 Waec Gce Physics Practical Questions and Answers is available here for you, Read the above articles to get verified Waec Gce Physics Practical Questions and Answers. Exam Expo for Physics Practical is available at 9Jatechs. 2018 Waec Gce Physics Practical Questions and Answers is available here, Get verified Physics Practical Waec Gce Question and Answers to free your self from exam bondage. 2018 Waec Gce Exam physics practical Exam runs.
Also Read >> 2018 Waec Gce Biology Objective and Essay Questions and Answers | Biology Expo
2018 Waec Gce Physics Practical Questions and Answers is available here, Get verified Physics Practical Waec Gce Question and Answers to free your self from exam bondage. 2018 Waec Gce Exam physics practical Exam runs. 2018 Waec Gce Physics Practical Questions and Answers is available here for you, Read the above articles to get verified Waec Gce Physics Practical Questions and Answers. Exam Expo for Physics Practical is available at 9Jatechs. 2018 Waec Gce Physics Practical Questions and Answers is available here, Get verified Physics Practical Waec Gce Question and Answers to free your self from exam bondage. 2018 Waec Gce Exam physics practical Exam runs.