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QUESTION 17 The definition of magnetic field is (A) (B) ©) (D) a region of space through which the total magnetic flux is measured. a region of space surrounding a body in which another body experiences a force of attraction. a region of space around an electrically charged particle or object within which a force would be exerted on other electrically charged particles or objects. a region of space near a magnet electric current or moving electrically charged particle in which a magnetic force acts on any other magnet electric current or moving electrically charged particle.
QUESTION 28 (4 marks) The diagram shows a charged particle moving between two current-carrying wires. [ =4A r =0.5m qg=2nC e> v=333x10°ms L=05A Calculate the magnitude of the magnetic force acting on the charged particle. Magnetic force = N (to 2 decimal places)
QUESTION 6 (4 marks) The diagram shows a particle Q entering a uniform magnetic field of 0.090 T. The particle has a speed of 1.5 x 10°m s!. Once in the magnetic field the particle moves in a circular path as shown. O e __________________ B=0.090T It is suspected that Q 1s one of the particles listed in the table. Particle number | Charge g (C) Mass m (kg) Determine which particle Q is most likely to be.
QUESTION 14 Moving electric charges in a magnetic field experience (A) adecrease in charge. (B) an increase in charge. (C) aforce parallel to the direction of the magnetic field. (D) a force perpendicular to the direction of the magnetic field.
QUESTION 23 (5 marks) The diagram shows a metal rod with a mass of 10.0 g and a length of 8.0 cm suspended in a uniform magnetic field of 0.50 T. There is no electric current through the metal rod when it is in Position 1. DC to power supply DC from power supply .'/ K\ Position 1 A;n Not to scale When a current (/) is passed through the metal rod it moves to Position 2 with an angle of 40° to the vertical. DC to power supply DC from power supply Position 2 Not to scale Determine the magnitude of the current required to move the metal rod into Position 2. Current = A (to 1 decimal place)
QUESTION 6 (4 marks) The diagram shows the magnetic field lines inside a solenoid carrying a current of 2 A. P l__--- Not to scale a) Calculate the number of turns per metre that would produce a magnetic field strength of 300 uT at Point P. [3 marks] b) Determine the direction of the magnetic field produced by the solenoid. [1 mark]
QUESTION 7 Which change would produce the greatest increase in magnetic field strength inside a current-carrying solenoid? (A) decreasing the thickness of the wire (B) increasing the length of the solenoid (C) adding more turns of wire to the solenoid (D) using an alternating current instead of a direct current
QUESTION 19 A current-carrying wire is placed perpendicular to two magnets. As the current in the wire is changed the force acting on it is recorded. P - P - : : : ______________________________________________________________________ e e ] ) : ' 5 ' ' ' ; : : / ' i | -7 - . : . ~ : | : e : : T : 1 -~ : Z 4 ¥ b . : LT : | Msssrmmseme sEReRslE SEnesgEaisse sasrassae Rel Siemini S ____-________i_-____-______ _____-_;_;; f _________________________________________ S : T 3 ' - ' N T @ ' 0 .- O [ - : . o ; - - - - - - 0 0.2 0.4 0.6 0.8 1.0 Current (A) The gradient of the line of best fit is proportional to the (A) potential difference. (B) electromotive force. (C) resistance of the wire. (D) magnetic field strength.
QUESTION 9 The diagram below shows a wire that is carrying an electric current. Point Y o 1 i The direction of the magnetic field around the wire at point Y is (A) up the page. (B) 1nto the page. (C) down the page. (D) out of the page.
QUESTION 20 Complete the following. (A) (B) © (D) A moving electric charge generates a meson field. baryon field. magnetic field. gravitational field.
QUESTION 25 (4 marks) The diagram below shows a moving charged particle in a magnetic field. X X X X X X X X B=0.02T X X X X X Calculate the mass of the charged particle using the information provided in the diagram above. Show your working. Express the solution using scientific notation. Mass = kg (to 1 decimal place)
QUESTION 2 (2 marks) The diagram below shows an electric current-carrying wire. Calculate the magnitude and direction of the magnetic field around the electric current-carrying wire at point A. Show your working. Express the solution using scientific notation. Magnitude=_____ @@ T (to the nearest whole number) Direction =
QUESTION 3 A current-carrying wire is shown. 2.0 cm Nottoscale J=0.5A Determine the magnetic field strength at X. (A) 5x 10° T out of the page (B) 5x 10° T into the page (C) 5x 10°* T out of the page (D) 5x 10° T into the page
QUESTION 24 (4 marks) A solenoid consisting of 1240 turns is shown. Not to scale 40 cm IT=0.50A Determine the magnitude and direction of the magnetic field inside the solenoid. Show your working. Magnitude = T (to two significant figures) Direction =
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