2004 - WAEC Physics Past Questions and Answers - page 5
Calculate the energy stored in a 20(\mu F) capacitor. If the p.d between the plates is 40V
Given that the gravitational constant is G. Newton's universal law of gravitation states that the force of attraction between two masses M1 and M2 separation by a distance r is
A charge of 1.6 x 10-10C is placed in a uniform electric field of intensity 2.0 x 105 NC-1. calculate the magnitude of the electric force exerted on the change
Which of the following statements is not correct?
The main function of the mouth piece of a telephone is that it converts sound energy to
An atom is normally electrically neutral because the
In which of the following devices is the principle of photoelectric effect not applicable?
Which of the following statements about X-rays is not correct? They
A radioactive substance has a half-life of 3 days. If a mass of 1.55g of this substance is left after decaying for 15 days, determine the original value of the mass
Which of the following representations is correct for an atom X with 28 electrons and 30 neutrons?