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Physics 2023 WAEC Past Questions
Which of the following statements about the properties of the electric field produced by charged parallel plates is not correct?
- A. The electric field in the region outside the parallel plate is zero, except for the edge effects
- B. The magnitude of the electric field strength at any point between the plates, except near the edges, depends on the magnitude of the charge on each plate.
- C. The magnitude of the electric field strength at any point between the plates is directly proportional to the magnitude of the charge on each plate.
- D. The electric field is uniform everywhere in the space between the parallel plates
The diagram above illustrates a mode of vibration of a wire of length 125 cm. The speed of the waves along the wire is 120 ms-1. Use the diagram to answer questions 2 and 3.
The diagram above illustrates a mode of vibration of a wire of length 125 cm. The speed of the waves along the wire is 120 ms-1. Use the diagram to answer questions 2 and 3. Determine the frequency of the waves
Which of the following diagrams correctly illustrates the mode of oscillation of air in a tube for the first overtone?
( The diagrams above are meant to help you in answering this question)
The process of producing electric current by a changing magnetic field is referred to as
- A. magnet induction
- B. electromagnetic induction
- C. flux linkage
- D. electrostatic induction.
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