Electrical & magnetic forces 1 When the distance between two charges is doubled, the magnitude of the electrostatic forcebetween them -A also doublesB remains the sameCbecomes half of what it wasDbecomes one quarter of what it was 4 A circular loop of 100 turns of wire rotates in a magnetic field. The current in the generator canbe increased by changing which of the following?F Reducing the area of the loops of wireGIncreasing the number of loops of wire in the generatorHSwitching out the magnet for one with a smaller magnetic fieldJ Decreasing the rate at which the loops rotate in the magnetic field

A magnetic field is a region of space surrounding a distribution of magnets or currents at every…

1 When the distance between two charges is doubled, the magnitude of the electrostatic force between them - A also doubles B remains the same C becomes half of what it was D becomes one quarter of what it was

1 When the distance between two charges is doubled, the magnitude of the electrostatic force between them - A also doubles B remains the same C becomes half of what it was D becomes one quarter of what it was

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter20: Static Electricity

Section: Chapter Questions

Problem 31A

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Question

Electrical & magnetic forces

1 When the distance between two charges is doubled, the magnitude of the electrostatic force
between them -
A also doubles
B remains the same
C
becomes half of what it was
D
becomes one quarter of what it was

4 A circular loop of 100 turns of wire rotates in a magnetic field. The current in the generator can
be increased by changing which of the following?
F Reducing the area of the loops of wire
G
Increasing the number of loops of wire in the generator
H
Switching out the magnet for one with a smaller magnetic field
J Decreasing the rate at which the loops rotate in the magnetic field

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