Waec Physics 2006 Past Questions and Answers

Question 41:

• WAEC 2006

a cell of e.m.f. 1.5V and internal resistance 1.0\(\Omega\) is connected to two resistor of resistance 2.0\(\Omega\) and 3.0\(\Omega\) in series. Calculate the current through the resistors

A. 0.25A
B. 0.30A
C. 0.35A
D. 0.50A

Question 42:

• WAEC 2006

An electric lamp rated 120W is used on a 240Vrms, calculate the resistance of its filament

A. 480\(\Omega\)
B. 360\(\Omega\)
C. 60\(\Omega\)
D. 2\(\Omega\)

Question 43:

• WAEC 2006

Which of the following statements about a bar magnet is correct?

A. Iron fillings cling uniformly along the length of a bar magnet
B. The magnetic properties are more pronounced at the middle of a magnet
C. It is impossible to have the same poles at the end of a magnet
D. The magnetic properties are more pronounced at points near the end of the bar

Question 44:

• WAEC 2006

The force experienced by a current-carrying conductor move in a magnetic field is employed in the working of the i. moving coil ammeter ii. electric bell iii. electric motor. Which of the statements above are correct?

A. I and ii only
B. Ii and iii only
C. I and iii only
D. I, ii and iii

Question 45:

• WAEC 2006

The breaking up of an atomic nucleus into the fragment of nearly equal size is known as

A. Nuclear fusion
B. Nuclear fission
C. Thermonuclear reaction
D. Natural radioactivity