Multiple Choice
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
Correct Answer:
Verified
Q4: When an object protected by a lightning
Q5: Electrostatic charges occur on _.<br>A) conductors<br>B) insulators
Q6: Static electricity refers to electrons that _ moving.<br>A) are<br>B)
Q7: Power lines are often protected by lightning
Q8: Copy machines operate on the principle of static
Q10: A thundercloud contains only positive electric charges.
Q11: A lightning protection device that is grounded
Q12: The precipitator uses a high-voltage DC power
Q13: The static charge sometimes used during spray
Q14: Within a lightning bolt, current flows _.<br>A)