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Physics

Physics · Quick practice · answer shown after each question

Magnetism and magnetic fields

Question 1 of 10

Question 1 of 10

The only sure test of whether a bar is a magnet is

Question 2 of 10

Question 2 of 10

Like magnetic poles

Question 3 of 10

Question 3 of 10

The direction of the force on a current-carrying conductor in a field is given by

Question 4 of 10

Question 4 of 10

The strength of an electromagnet increases when

Question 5 of 10

Question 5 of 10

Describe how a steel bar can be magnetised by (a) the single-touch method, (b) the electrical method. State how the polarity is determined in each case.

Question 6 of 10

Question 6 of 10

Copper can be magnetised.

Question 7 of 10

Question 7 of 10

The SI unit of magnetic flux density is the ___.

Question 8 of 10

Question 8 of 10

Magnetic field lines never cross.

Question 9 of 10

Question 9 of 10

Iron, nickel and cobalt are described as ___ materials.

Question 10 of 10

Question 10 of 10

The force on a current-carrying conductor in a magnetic field is given by

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.