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Physics
UTME / JAMB 2002
Electrostatics & Capacitors
Diagram
Solution
The electric field between two - point charges is shown in the diagram above. What types of charges are at X and Y?
Attached Figure / Diagram
A
Both X and Y are negative
B
Both X and Y are positive
C
X is positive and Y is negative
D
X is negative and Y is positive
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
In the provided diagram, the arrows on the field lines surrounding both point X and point Y are pointing outward. This indicates that both X and Y are negative charges. turn the positive to positive
Source: Myschool Past Questions Archive (Record #12037)
Physics
UTME / JAMB 2002
Atomic, Quantum, Nuclear Physics & Electronics
Solution
The electromagnetic wave that can produce a heating effect on the environment is
A
x -rays
B
ultraviolet rays
C
infrared rays
D
gamma rays
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
Infrared rays produce a high heating effect. All red-hot bodies such as a heated iron ball, flame, and fire are sources of infrared rays.
Source: Myschool Past Questions Archive (Record #12038)
Physics
UTME / JAMB 2002
Current Electricity & Electric Circuits
Solution
an electric cell with nominal voltage E has a resistance of 3\Omega connected across it. If the voltage falls to 0.6E, the internal resistance of the cell is
A
1Ω
B
2Ω
C
3Ω
D
4Ω
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
IR = 0.6 X I ( R + r )
I X 3 = 0.6 X I ( 3 + r )
3I / 0.6I = 3 + r
5 = 3 + r
r = 2 ohms
Source: Myschool Past Questions Archive (Record #12041)
Physics
UTME / JAMB 2002
Atomic, Quantum, Nuclear Physics & Electronics
Solution
\(^{23}_{11}\)Na + X → \(^{20}_9\)F + \(^4_2\)He
What particle is X in the reaction above?
A
Alpha
B
Beta
C
Neurons
D
Gamma
medium Difficulty
Verified Correct Answer: Option C
Physical Principles & Numerical Solution
The particle in the reaction is a neutron
\(^{23}_{11}\)Na + \(^1_0\)n → \(^{20}_9\)F + \(^4_2\)He
Source: Myschool Past Questions Archive (Record #12253)
Physics
UTME / JAMB 2002
Atomic, Quantum, Nuclear Physics & Electronics
A transistor is used in the amplification of signals because it
A
controls the flow of current
B
consumes a lot of power
C
allows doping
D
contains electron and hole carriers
medium Difficulty
Verified Correct Answer: Option A
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #12259)
Physics
UTME / JAMB 2002
Magnetism, Electromagnetism & AC Circuits
The carbon-granules microphone works on the principle of change in
A
inductance
B
resistance
C
capacitance
D
voltage
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #12260)
Physics
UTME / JAMB 2002
Electrostatics & Capacitors
Solution
At what frequency would a capacitor of 2.5\muF used in the radio circuit have a reactance of 250\Omega
A
\(\frac{π}{800}\) Hz
B
\(\frac{800}{\pi}\) Hz
C
200π Hz
D
2000π Hz
medium Difficulty
Verified Correct Answer: Option B
Physical Principles & Numerical Solution
X\(_c\) = \(\frac{1}{2\pi f c}\)
f = \(\frac{1}{ 2 \pi f C}\) = \(\frac{1}{\pi \times 2 \times 250 \times 2.5 \times 10^{-6}}\)
f = \(\frac{1\times 10^6}{ 1250 \pi}\)
f = \(\frac{800}{\pi}\)
Source: Myschool Past Questions Archive (Record #12261)
Physics
UTME / JAMB 2002
Current Electricity & Electric Circuits
Solution
A current of 0.5 A flowing 3h Deposits 2g of metal during electrolysis. The quantity of the same metal that would be deposited by the currents of 1.5A flowing in 1h is
A
2g
B
6g
C
10g
D
18g
medium Difficulty
Verified Correct Answer: Option A
Physical Principles & Numerical Solution
From Faraday's Law, mass deposited during electrolysis is given by
\(M_1 = I_1t_1Z\)
=> Z = \(\frac{M_1}{(I_1t_1)}\)
⇒ Z =\(\frac{2}{0.5 \times3}\) = 1.333Kg/C
For a current of 1.5A flowing for 1h, the mass M, deposited is given by
\(M_2 = ZI_2T_2\) = 1.333 x 1 x 1.5 = 2.0g
\(M_2\) = 2.0g
note: converting time to seconds here is not necessary.
Source: Myschool Past Questions Archive (Record #12262)
English Language
UTME / JAMB 2002
Lexis, Structure & Register (Cloze & Vocabulary)
Which of these correctly summaries the arguments adduced by the advocate of deregulation?
A
dereuglating the economy will make the NNPC more efficient and less wasteful
B
the government should deregulate every aspect of the nigerian economy
C
competition in the oil industry will be beneficial to severval nigerians
D
competition should be allowed in the production and distribution of petroleum products
medium Difficulty
Verified Correct Answer: Option C
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #15171)
English Language
UTME / JAMB 2002
Reading Comprehension, Summary & Composition
Which of the following conclusions can be reached from the passage?
A
the deregulation of the economy will solve all the problems of petroleum products distribution
B
the government is hell-bent on leaving nigerians at the mercy of a heartless cartel
C
nigerians cannot buy fuel at exorbitant prices
D
the deregulation of the oil industry does not preclude the government from exerting its influence
medium Difficulty
Verified Correct Answer: Option D
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #15172)
English Language
UTME / JAMB 2002
Lexis, Structure & Register (Cloze & Vocabulary)
An appropriate title for this passage is
A
the advantage of a deregulated economy
B
making a case for deregulation
C
highlighting the dangers of deregulation
D
the problems of the NNPC
medium Difficulty
Verified Correct Answer: Option B
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #15173)
English Language
UTME / JAMB 2002
Reading Comprehension, Summary & Composition
Solution
Which of the following statements is true according to the passage?
A
the nigerian labour congress has been able to prevent the government from deregulating the economy
B
the introduction of entrepreneurs to the oil industry wil make life easy only for a few nigerians
C
the opposition to the deregulation of the oil industry is not unanimous
D
a better life for all nigerians is conditional upon the deregulation of the economy.
medium Difficulty
Verified Correct Answer: Option C
Grammar & Contextual Explanation
The passage discusses the topic of deregulation in Nigeria's oil industry and outlines different perspectives on this issue. The passage mentions opposition to deregulation, primarily driven by fears that it might lead to negative consequences such as higher fuel prices. However, it also indicates that this opposition is not universal or unanimous. For example, the apostles of deregulation argue for its benefits, suggesting that not everyone shares the same view against deregulation. The passage presents a variety of viewpoints on deregulation. It mentions concerns raised by some, such as the fear of leaving Nigerians vulnerable to monopolies, but it also discusses arguments in favour of deregulation. Overall, option C is supported by the passage as it reflects the presence of differing opinions and viewpoints regarding the deregulation of the oil industry in Nigeria.
Source: Myschool Past Questions Archive (Record #15174)
English Language
UTME / JAMB 2002
Reading Comprehension, Summary & Composition
The writer seems to suggest that
A
nigerians do not understand the sense in deregulation
B
the anxiety caused by the deregulation queation is groundless
C
a deregulation economy will cause the government to be indifferent to the plight of ordinary nigerians
D
only a heartless cartel will benefit bt the deregulation of the oil industry
medium Difficulty
Verified Correct Answer: Option B
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #15175)
English Language
UTME / JAMB 2002
Reading Comprehension, Summary & Composition
Which of the following statement is true according to the passage?
A
most report writing is characterized bt the sparing use of the impersonal style
B
the impersonal style helps to achieve a measure of objective in report writing
C
the impersonal style has been widely acclaimed
D
most writers use the impersonal style to achieve objectivity in their reports
medium Difficulty
Verified Correct Answer: Option B
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #15177)
English Language
UTME / JAMB 2002
Lexis, Structure & Register (Cloze & Vocabulary)
One argument given in support of personal writing is that it
A
makes writers more focused and less boring
B
can be more objective than impersonal writing
C
is the style to use in all situations involving businessmen
D
has informal features which make it more diverting than impersonal writing
medium Difficulty
Verified Correct Answer: Option A
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #15178)