Waec Physics 2001 Past Questions and Answers

Question 36:

• WAEC 2001

What is the total energy stored by the capacitors?

A. 2.0 x 10^-4J
B. 1.0 x 10^-4J
C. 9.0 x 10^-2J
D. 1.0 x 10^-2J

Question 37:

• WAEC 2001

Three identical lamps each power 100W are connected in parallel across a potential difference of 250V. Calculate the current in the circuit

A. 7.5A
B. 2.5A
C. 1.2A
D. 0.8A

Question 38:

• WAEC 2001

An electric bulb is rated 60W, 220V. Calculate the resistance of its filament when it is operating normally

A. 296.7\(\Omega\)
B. 400.0\(\Omega\)
C. 512.2\(\Omega\)
D. 806.7\(\Omega\)

Question 39:

• WAEC 2001

The Earth's magnetic equator passes through Jos in Nigeria. At Jos. the

A. Angle of variation is zero
B. Magnetic declination is 90^o
C. Angle of dip is zero
D. Horizontal component of the Earth's magnetic field is zero

Question 40:

• WAEC 2001

Which of the following statements about magnetic lines of force is not correct?

A. A magnnetic line of force is an imaginary line which the north pole of a magnet would describe if it is free to moves
B. Magnetic lines of force do not cross one another
C. Magnetic lines of force are closely packed together at neutral point
D. The presence of magnetic lines of force in a region indicates the presence of a magnetic field