Home WAEC NECO NABTEB
JAMB CBT JUPEB IJMB Other Exams Main Website
Want To Contact Us? Click Here

Quick Contact

Click To Send Us SMS Now
Click To Chat Examrelief On WhatsApp

Latest NECO on Giditrends

2020 NECO Physics Practical Questions and Answers
NECO November 19, 2020 • 5 days ago • No Comment Yet

WELCOME TO EXAMRELEIF 2020 NECO ANSWERS PAGE

KEEP REFRESHING THIS PAGE UNTIL THE QUESTIONS AND ANSWERS ARE FULLY UPLOADED

=================================

100% VERIFIED PHYSICS PRACTICAL QUESTIONS
Page 1. CLICK HERE

Page 2. CLICK HERE

Page 3. CLICK HERE

Page 4. CLICK HERE

Page 5. CLICK HERE

Page 6. CLICK HERE

Page 7. CLICK HERE

Page 8. CLICK HERE

Page 9. CLICK HERE

👑 2020 NECO VERIFIED PHYSICS PRACTICAL ANSWERS👑

100% VERIFIED PHYSICS PRACTICAL ANSWERS
SNAPPED ANSWERS

(1a)
Tabulate:
S/N: 1|2|3|4|5|

M|g: 40.0|35.00|30.00|25.00|20.00|

θ°: 41.80|35.70|30.00|24.60|19.47|

ϕ=(90-θ°): 48.20|54.30|60.00|65.40|70.53|

Cosϕ; 0.6665|0.5835|0.5000|0.4163|0.3333|

CLICK HERE FOR SNAPPED TABLE

(1ax)
Graph [CLICK HERE]

(1axi)
Slope , S=Δm|g/ΔCosϕ
=(40-20)g/0.6665-0.3333
S= 20g/0.3332=60.024g

(1axii)
K=s/2 =60.024g/g= 30.012g

(1axiii)
Precautions:
(i) I avoided error due to parallax when reading from the protector
(ii) I ensured that the force board is firmly and correctly clamped to the retort stand

(1bi)
– The have the same magnitude/size
– They can be obtained/calculated by the same means

(1bii)[CLICK HERE]
T²= 9²+12²
T= √81+144
T= √225
T= 15N
==============================

Snapped Answers

(3a)
Tabulate:
S/N: 1|2|3|4|5|

R/Ω: 2.00|4.00|6.00|8.00|10.00|

L/cm: 50.00|66.70|75.00|80.00|83.30|

B/Ω^-¹: 0.500|0.250|0.167|0.125|0.100|

Δ/cm: 1.000|0.499|0.333|0.250|0.200|

CLICK HERE FOR SNAPPED TABLE

(3aviii)
Graph [CLICK HERE]

(3aix)
Slope ,S=ΔB/Ω^-¹/ΔΔ/cm =0.5-0.1/1.0-0.2=0.4/0.8=0.5
Slope =0.5Ω^-¹/cm

(3ax)
K=S^-¹= 1/5=1/0.5Ω^-¹/cm =2Ωcm

(3axi)
Precautions:
(i) I avoided error due to parallax when reading from the potentiometer
(ii) I ensured that the wire are tightly connected.

(3bi)
(i) potentiometer give exact value of potential difference while voltmeter draws apart of the current
(ii) potentiometer can be used for measuring the internal resistance of a cell which cannot be done with voltmeter

(3bii) [CLICK HERE]
x/R= c/100-c
x/R= 20-0/100-20
x/20= 20/80
x= 20*20/80
x= 400/80
x= 5Ω

======COMPLETED ======

Don’t Just Copy Alone, Drop your Comments, Share with your friends on Facebook & Twitter Using the below share buttons.
BEST OF LUCK

Click Here To Comment

Leave a Reply