Magnetic Forces, Fields, and Faraday's Law
Explore magnetic forces, magnetic fields, and Faraday's Law with this Grade 11 Physics worksheet. Understand key concepts and apply them to various scenarios.
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Magnetic Forces, Fields, and Faraday's Law
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. Which of the following statements is true regarding magnetic field lines?
They originate from the south pole and terminate at the north pole.
They never cross each other.
Their density indicates the direction of the magnetic field.
They are purely imaginary and have no physical significance.
2. What is the direction of the magnetic force on a positive charge moving in a magnetic field, according to the right-hand rule?
Parallel to the velocity of the charge.
Parallel to the magnetic field.
Perpendicular to both the velocity and the magnetic field.
Opposite to the direction of the magnetic field.
1. The phenomenon where a changing magnetic field through a coil induces an electromotive force (EMF) is known as .
2. Magnetic field lines around a bar magnet emerge from the pole and enter the pole.
3. The strength of a magnetic field is measured in .
1. Draw the magnetic field lines around the bar magnet shown below.
2. State Faraday's Law of Induction and provide the mathematical formula.
1. A stationary charge experiences a magnetic force in a uniform magnetic field.
True
False
2. Increasing the number of turns in a coil will decrease the induced EMF, according to Faraday's Law.
True
False
1. A straight wire carrying a current of 5.0 A is placed in a uniform magnetic field of 0.20 T. If the wire has a length of 0.10 m and is oriented at an angle of 30° to the magnetic field, calculate the magnetic force exerted on the wire.
2. Explain how a simple generator works based on the principles of Faraday's Law.