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Magnetic Fields Video Lessons (7 video lessons)

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Magnetic Fields Questions and Answers (4,794 questions and answers)

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A single circular loop of wire with a radius of 0.020 m carries a current of 8.0 A. It is placed at the center of a solenoid that has a length of 0.65 m, a radius of 0.080 m, and 1400 turns. Determ
An electron moves with a speed of 1 m/s in the x-y plane at an angle of 45^{\circ} between the positive x and y axes, in the direction of increasing x and y. A magnetic field B = (1.0 \;i + 2.0 \;
The current density inside a long, solid, cylindrical wire of radius a = 2.1 mm is in the direction of the central axis and its magnitude varies linearly with radial distance r from the axis accord
The magnetic flux for a constant magnetic field is the component of the magnetic field perpendicular to the plane of the coil times the area of the coil. Write an equation for the magnetic flux th
The orientation of small satellites is often controlled using torque from current - carrying coils in Earth's magnetic field. Suppose a multiturn coil has a cross - sectional area of 6.36 times 10^
A current balance is constructed in the following way: A straight10.4-cm-long section of wire is placed on top of the pan of an electronic balance. This section of wire is connected in series with
In an experiment with cosmic rays, a vertical beam of particles that have charge of magnitude 3 e and mass 12 times the proton mass enters a uniform horizontal magnetic field of 0.250 T and is bent
A 280 g ball is dropped from a height of 1.6 m, bounces on a hard floor, and rebounds to a height of 1.2 m. What maximum force does the floor exert on the ball?
Jupiter's magnetic field occupies a volume of space larger than the Sun and contains ionized particles ejected from sources including volcanoes on Io, one of Jupiter s moons. A sulfur ion (S^+) Jup
Electricity may be generated by rotating a loop of wire between the poles of a magnet. The induced current is greatest when: a. The plane of the loop is parallel to the magnetic field. b. The pla

Magnetic Fields Quizzes (11 quizzes)

Check your mastery of this concept by taking a short quiz.

Magnetic Fields & Currents
Magnetism Practice Problems
Magnetic Force: Quiz & Worksheet for Kids
What is a Magnetic Field? - Quiz & Worksheet for Kids
Force of Magnetic Fields on Currents
Magnetic Fields & Their Creation
Lab on Magnetic Fields' Effect on Moving Charges
Properties of Magnetic Fields
Characteristics of Magnetic Forces
Affecting Moving Charges with Magnetic Forces

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