WAEC (WASSCE) Physics · Fields
Magnetic field: WAEC Physics Past Questions and Answers
What the WAEC syllabus covers in Magnetic field
Our summary: Magnets, magnetic fields around magnets and currents, the force on currents and moving charges, and the earth's field.
- Properties of magnets and magnetic materials (Practical examples such as soft iron, steel and alloys.)
- Magnetization and demagnetization (Temporary and permanent magnets. Comparison of iron and steel as magnetic materials.)
- Concept of magnetic field (Magnetic flux and magnetic flux density. Magnetic field around a permanent magnet, a current-carrying conductor and a solenoid. Plotting of line of force to locate neutral points. Units of magnetic flux and magnetic flux density as weber (Wb) and tesla (T) respectively.)
- Magnetic force on (i) a current-carrying conductor placed in a magnetic field; (ii) between two parallel current-carrying conductors (Qualitative treatment only. Applications: electric motor and moving-coil galvanometer.)
- Use of electromagnets (Examples in electric bell, telephone earpiece etc.)
- The earth's magnetic field (Mariner's compass. Angles of dip and declination.)
- Magnetic force on a moving charged particle (Solving simple problems involving the motion of a charged particle in a magnetic field, using $F = qvB\sin\theta$.)
Syllabus content © The West African Examinations Council (WASSCE (harmonised West African syllabus)).
WAEC (WASSCE) Physics questions on Magnetic field
- WAEC 2024In storing magnets, the keeper is used to
- WAEC 2023A solenoid is constructed by winding an insulated copper on a long test tube. A constant direct current is passed through the solenoid. Which of the following…
- WAEC 2023In a mass spectrometer, an ion of charge, q, and mass, m, moving in a path of radius, r, in a field of flux density, B, has a speed of
- WAEC 2023Which of the following statements about a ferromagnetic material is correct? It
- WAEC 2023The purpose of commutators in a direct current motor is to
- WAEC 2022A freely suspended compass needle on the earth's surface settles in a plane called----------
- WAEC 2022Which of the following statements about a straight current-carrying wire placed in a uniform magnetic field is correct? The wire experiences ---------------
- WAEC 2022The reason for having a large number of turns in the coil of a moving coil galvanometer is to--------
- WAEC 2022Current is passed through two parallel conductors in the same direction. If the conductors are placed near each other, they will------------------
- WAEC 2022The magnetic material produced from the chemical combination of metal oxides and has a very high resistance to electric current is called
- WAEC 2021The following statements about a loudspeaker are correct except?
- WAEC 2020A beam consisting of -particles. -particles and -rays pass through a magnetic field at right angles to the direction of the field. Which of the following…
- WAEC 2020An electron of mass m and charge e moves in a circular path in a magnetic field of flux density B. How long does it take to complete one orbit?
- WAEC 2019Which of the following statements is the correct reason for using soft iron in making the armature or an electric bell?
- WAEC 2019A freshly demagnetized bar magnet is placed in the East-West direction to ensure that
- WAEC 2018Which of the following statements about magnetic lines of force is not correct? They
- WAEC 2016What determines the polarity at the ends of an electromagnet? The
- WAEC 2016In storing magnets, keepers are used to
- WAEC 2016A 10 C charge moves with a velocity of 1.0 x 105 ms^ -1 at right angle to a uniform magnetic field of flux density 5.0 x 10-4T. Calculate the force on the…
- WAEC 2016Which of the following statements is not correct about steel and soft iron?
- WAEC 2015When current flows through a moving-coil galvanometer, the force exerted on the pointer depends on the: i. strength of the current. ii. magnetic field strength…
- WAEC 2015The angle which the direction of the earth magnetic field makes with the horizontal at a palace is know as.
- WAEC 2014The region around a magnet in which magnetic force can be expressed is known as
- WAEC 2012The magnetic relay is a device used for
- WAEC 2010Which of the following factors will increase the sensitivity of moving coil meter?
Years with Magnetic field questions in DeeepSolve's question bank
From the past questions DeeepSolve holds, not a count of everything the exam body has set.
- 2024
- 2023
- 2022
- 2021
- 2020
- 2019
- 2018
- 2016
- 2015
- 2014
- 2012
- 2010