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2 cards from this section. Quick, good the night before a test.
What is the electric field strength at a point 2 m away from a 5 C charge?
Remember the formula for electric field using the charge and distance.
True or False: Electric fields can only originate from positive charges.
Consider the effect of negative charges.
What does the superposition principle state in electrostatics?
Think about how different charges affect each other.
True or False: The electric field strength is dependent only on the distance and sign of the charge producing the field.
Consider how the electric field varies with distance.
Two point charges, +5 μC and -5 μC, are 10 cm apart. Calculate the electric field at a point 2 cm from the +5 μC charge.
Consider both directions.
A charge is placed at the center of a spherical shell. Describe the electric field inside and outside the shell.
Use Gauss's Law for your justification.
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