Physics Past Questions

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2386

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

A. 3.2 x 10⁵N
B. 1.8 x 10⁵N
C. 3.2 x 10^-5N
D. 1.8 x 10^-5N

View Answer & Discuss WAEC 2004

2387

Which of the following statements is not correct?

A. a magnetic field is a region in which a magnetic force will be detected
B. a magnetic line of force is a path along which a magnetic fields are scalar quantities it were free
C. magnetic fields are scalar quantities
D. neutral point are obtained where the earth's magnetic force is exactly equal and opposite to that due to a magnet

View Answer & Discuss WAEC 2004

2388

The main function of the mouth piece of a telephone is that it converts sound energy to