Bringing a charged test object near the ball of a charged electroscope causes the leaves to move closer together. This indicates that the test object charge is the _____ polarity as the electroscope charge.
A) same
B) opposite
Correct Answer:
Verified
Q9: When an object protected by a lightning
Q10: Within a lightning bolt, current flows _.
A)
Q11: A lightning protection device that is grounded
Q12: Insulators are the only materials that can
Q13: Lightning is the result of static charges
Q15: The shock that results from walking across
Q16: The precipitator uses a high-voltage DC power
Q17: A precipitator is a type of _.
A)
Q18: Static electricity refers to electrons that _ moving.
A) are
B)
Q19: Copy machines operate on the principle of static
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