= 1.02 x 10^-7 N/C should be the charge (sign and magnitude) of a 1.48-g particle be for it to remain stationary when placed in a downward-directed electric field of magnitude 700 n/c
Due to the physical property of electric charge, charged material experiences a force when it is subjected to an electromagnetic field. You might be electrically neutral or positively charged (commonly carried by protons and electrons respectively). While similar charges repel one another, opposite charges attract. A thing that has no net charge is said to be neutral. For problems that do not need taking into account quantum events, classical electrodynamics—the term used to describe early understanding of how charged particles interact—remains accurate. Since the net charge—the total of the positive and negative charges in an isolated system—is an electric charge, it is a conserved property.
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