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Create and set up a CBT environment with your preferred subjects.
Practice JAMB CBT with real UTME past questions in CBT format.
CB-WASSCE styled past question practice.
SSCE & GCE styled past question practice.
Which of the current-voltage characteristics shown above is that exhibited an ohmic conductor?
The velocity of sound in air at 15°C is 340ms\(^{-1}\). Calculate the velocity at 47\(^o\)C
A parallel plate capacitor is charged and the charging battery is subsequently disconnected. lf the plates of the capacitor are moved farther apart by means of insulating handles, the
A beam consisting of \(\alpha\)-particles. \(\beta\)-particles and \(\gamma\)-rays pass through a magnetic field at right angles to the direction of the field. Which of the following observations would be made about the \(\alpha\)-particles, \(\beta\)-particles, and \(\gamma\)-rays respectively?
A moving-coil galvanometer which gives a full-scale on deflection with 0.005A is converted to a voltmeter reading up to 5V using an external resistance of 975\(\Omega\). What is the resistance of the metre?
The length of an iron bar is 100cm at 20°C. At what temperature will its length increase by 0.01%? [Linear expansivity of iron = 1.2 x 10\(^{-5}\)°C]
A 60kg man stands on a weighing balance in an elevator. If the elevator accelerates upwards at 5ms\(^{-2}\), determine the reading of the scale. [g = 10ms\(^{-2}\)]
A ray of light traveling from glass into ethyl alcohol is incident at the boundary at an angle of incidence 30\(^o\). Calculate the angle of refraction.
[Refractive index of glass =1.5; refractive index of ethyl alcohol = 1.36]
Two identical cups containing the same volume of water at 45°C and 5°C, are left in a room at 25°C. Which of the following graphs correctly illustrates the variation of temperature with time?
The earpiece of a telephone handset converts energy from
An electrical device has 50 turns in its primary coil and 20 turns in the secondary coil. The device can be a\an?
The diagram above illustrates a beam of parallel rays from a distant object O, incident on one side of the total reflecting prism. Which diagram does not represent the correct path of the beam when it emerges from the prism?
Which of the following statements explain why hot soapy water is more effective in cleaning oil-stained dishes?
The material used to slow down the neutrons in a nuclear reactor is
The depolarising agent in a Leclanche cell is?
Which of the following waves requires a material medium for its propagation?
The average distance moved by a molecule between collisions is called
Which of the following machines does not apply the lever principle?
How would the capacitance of a parallel plate capacitor be affected if the distance of separation of its plates is decreased? It will
An image formed on a screen is always?