Two Point Particles, with Charges of Q₁ and Q₂, Are

question 54

Multiple Choice

Two point particles, with charges of q₁ and q₂, are placed a distance r apart.The electric field is zero at a point P between the particles on the line segment connecting them.We conclude that:

• A)q₁ and q₂ must have the same magnitude and sign
• B)P must be midway between the particles
• C)q₁ and q₂ must have the same sign but may have different magnitudes
• D)q₁ and q₂ must have equal magnitudes and opposite signs
• E)q₁ and q₂ must have opposite signs and may have different magnitudes

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Definitions:

Endoderm

Innermost of the three germ layers of an embryo.

Epidermis

Outer portion of the skin formed of epithelial tissue that rests on or covers the dermis.

Germ Layer

One of the three primary layers (ectoderm, mesoderm, endoderm) in early embryonic development from which all tissues and organs develop.

Ectoderm

The outermost layer of cells or tissue of an embryo in early development, giving rise to the outer layer of the skin, central and peripheral nervous systems, eyes, inner ear, and many connective tissues.