Physics, 23.09.2019 11:10 webbjalia04
The force a magnet exerts on another magnet, on iron or a similar metal, or on moving charges is
a. proportional to the charge of the magnet.
b. a magnetic force.
c. an electric force.
d. proportional to the mass of the magnet.
Answers: 3
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Select the three ways that the parallel-plate capacitor differs from a car battery.
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The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?
Answers: 3
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Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c
Answers: 1
The force a magnet exerts on another magnet, on iron or a similar metal, or on moving charges is
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