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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.
One major reason why electrical appliances in homes are normally earthed is that the-----------
A lamp is rated 240 V, 60 W. Determine the resistance of the lamp when lit?
In a series R-L-C circuit at resonance, impedance is----
The speed of fast-moving neutrons in a nuclear reactor can be reduced by using?
.An inductor of inductance 10 H is connected across an a.c circuit source of 50 V, 100 Hz. What is the current in the circuit? [\(\pi\) = 3.14]
A galvanometer with a full-scale deflection of 20 mA is Converted to read 8 K by connecting a 395 \(\Omega\) resistor in series with it. Determine the internal resistance of the galvanometer
Which of the following statements about electric potential energy is not correct?
Three cells each of emf, 1.0 V, and internal resistance, 2 \(\Omega\), are connected in parallel across a 3\(\Omega\) resistor. Determine the current in the resistor.
Which of the following statements about a straight current-carrying wire placed in a uniform magnetic field is correct? The wire experiences ---------------
A body of mass, M, moving with velocity, V, has a wavelength, X, associated with it. This phenomenon is called----------
The magnetic material produced from the chemical combination of metal oxides and has a very high resistance to electric current is called
The period of a 10 kHz radio wave traveling at 10\(^{8}\) ms\(^{-1}\) is--
Current is passed through two parallel conductors in the same direction. If the conductors are placed near each other, they will------------------
The reason for having a large number of turns in the coil of a moving coil galvanometer is to--------
The power of the lens is +2.5D. What is the radius of the curvature?
The periodic rise and fall in the intensity of sound produced whn two notes of nearly equal frequencies are sounded together is called?
An object is placed at different distances, u, from a converging lens of focal length, 15.0cm. For what value of u does the lens act as a microscope?
A freely suspended compass needle on the earth's surface settles in a plane called----------
The efficiency of a wheel and axle is 100% and the ratio of their radii is 5:1. calculate the effort required to lift a load of mass 20kg using this machine, [g = 10 m s\(^{-2}\)]
Which of the following descriptions of the image formed by a plane mirror is not correct. the image is----