Physics Past Questions and Answers

(a) Explain what is meant by a magnetic field
(b)(i) Describe an experiment to show that a magnetic field exists around a straight wire carrying current
(ii) Draw a labelled diagram showing the pattern and direction of the magnetic field rroduced around the wire. (Neglect the earth's magnetic field).
(c) Sketch the magnetic field due to two straight parallel wires carrying current in the same direction. Indicate the neutral point in the field
(d) Explain, with the aid of a labelled diagram, how a delicate magnetic material could be protected from the earth's magnetic field.

Which of the following is a fundamental quantity?

Which of the following is a fundamental quantity?

A boy cycles continuously through a distance of 1.0 km in 5 minutes. Calculate his average speed

A student found out from a simple pendulum experiment that 20 oscillations were completed in 38 seconds. What is the period of oscillation of the pendulum?