A cell of emf 2 V has an internal resistance of 0.5 Ω. A current of 0.4 A passes through an external resistor, P. Determine the resistance of P.

Which of the following diagrams correctly illustrates the mode of oscillation of air in a tube for the first overtone? ( The diagrams above are meant to help...

A body starts with an initial velocity of 20 m/s and moves with a uniform acceleration, a, for 15 seconds. Which of the following equations represents the di...

In a mass spectrometer, an ion of charge, q, and mass, m, moving in a path of radius, r, in a field of flux density, B, has a speed of

The process of producing electric current by a changing magnetic field is referred to as

In a controlled thermal fission reactor, the use of control rods will not affect the

The diagram above illustrates a mode of vibration of a wire of length 125 cm. The speed of the waves along the wire is 120 ms-1. Use the diagram to answer qu...

The diagram above illustrates a mode of vibration of a wire of length 125 cm. The speed of the waves along the wire is 120 ms-1. Use the diagram to answer qu...

Which of the following statements about the properties of the electric field produced by charged parallel plates is not correct?