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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.
Two capacitors of 0.0003μF and 0.0006μF are connected in series, find their combined capacitance.
An accumulator is 90% efficient. If it gives out 2700J of energy while discharging, how much energy does it take in?
Calculate the value of electric field intensity due to a charge of 4μC if the force due to the charge is 8N
What is the colour of red rose under a blue light?
Which of the following measuring instruments operates based on the heating effect of electric current?
The efficiency of a cell with internal resistance of 2\(\Omega\) supply current to a 6\(\Omega\) resistor is
Infra-red thermometers work by detecting the
A force of 10N extends a spring of natural length 1m by 0.02m, calculate the length of the spring when the applied force is 40N.
Bifocal lens is used to correct the eye defect of
A monochromatic light is one that
The simple form of the lead acid accumulator often has a negative pole of
If the pressure on an enclosed gas is doubled and its temperature rises from 27ºC to 127ºC, then its volume will
The force of attraction between molecules of the same substance is
Using the diagram above, calculate the relative density of x, if the density of methanol is 800kgm\(^{-3}\)
The equivalent capacitance of the capacitors in the circuit above
If the displacement of a car is proportional to the square of time, then the car is moving with
The unit of impedance is
A blacksmith heated a metal whose cubic expansivity is 3.9 x 10\(^{-6}\)K\(^{-1}\). Calculate the area expansivity.
I clear II sharp III poor IV dark
Which of the above happens when the hole of a pinhole camera is diminished?
When thermal energy in a solid is increased, the change in state is called