Updated description
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.
If a wheel 1.2 m in diameter rotates at one revolution per second, calculate the velocity of the wheel.
I. Force (N)
II.Torque (Nm)
III. Current (A)
IV. Power (W)
Which of the above are the correct S. I: units of the quantities indicated?
A photon of wavelength 6.0 x 10\(^{-7}\) m behaves like a particle of a certain mass. The value of that mass is [h = 6.63 x 10\(^{-34}\) Js, c = 3.0 x 10\(^8\) ms\(^{-1}\)]
A radioactive substance has a half life of 20 days. What fraction of the original radioactive nuclei will remain after 80 days?
A 120V, 60W lamp is to be operated on 220V ac supply mains. calculate the value of non inductive resistance that would be required to ensure that the lamp is run on correct value
Two long parallel wires X and Y carry currents 3A and 5A each. if the force experienced by unit length is 5 x 10-5N. the force per unit length experienced by wire Y is
The instrument that measures both ac and dc is called
A 40KW electric cable was used to transmit electricity through a resistor of resistance 2.00Ω at 800V. The power loss as internal energy is
A conductor has a diameter of 1.00mm and length of 2.00m. If the resistance of the material is 0.1Ω, the resistivity is
The difference observed in solids, liquids and gases can be accounted for by
A particle of weight 120N is placed on a plane inclined at 300 to the horizontal. If the plane has an efficiency of 60% to the floor what is the force required to push the weight uniformly up the plane?
118.8cm2 surface of the copper cathode of a voltameter is to be coated with 10-6m thick copper of density 9 x 103kgm-3. How long will the process run with 10A constant current?
[3.3 x 10-7kgC-1]
During the nuclear reaction described by
\(^{235}_{92}\)W → \(^{235}_{93}\)X → \(^{231}_{91}\)Y
The particles emitted are respectively