16. An electroscope is a simple device. It con- sists of a metal ball that is attached by a conductor to two fine gold leaves that are protected from air disturbances in a jar, as shown in the sketch. When the ball is touched by a charged object, the leaves that normally hang straight down spring apart. Why? (Electro- scopes are useful not only as charge detectors, but also for measuring the amount of charge: the more charge transferred to the ball, the more the leaves diverge.)
16. An electroscope is a simple device. It con- sists of a metal ball that is attached by a conductor to two fine gold leaves that are protected from air disturbances in a jar, as shown in the sketch. When the ball is touched by a charged object, the leaves that normally hang straight down spring apart. Why? (Electro- scopes are useful not only as charge detectors, but also for measuring the amount of charge: the more charge transferred to the ball, the more the leaves diverge.)
Chapter7: Electricity
Section: Chapter Questions
Problem 2MIO
Related questions
Question
write answer and explanation, not too complicated
Transcribed Image Text:Critical Thinking
Read each scenario and then write a paragraph with an explanation.
16.
An electroscope is a simple device. It con-
sists of a metal ball that is attached by a
conductor to two fine gold leaves that are
protected from air disturbances in a jar,
as shown in the sketch. When the ball is
touched by a charged object, the leaves that
normally hang straight down
spring apart. Why? (Electro-
scopes are useful not only
as charge detectors, but also
for measuring the amount
of charge: the more charge
transferred to the ball, the
more the leaves diverge.)
17.
All the bulbs are identical in these circuits and every battery has the same voltage.
An ammeter is placed on each circuits to measure the number of amperes flowing
through the circuit.
a. Which ammeter will have the highest reading? Which will have the
lowest? Explain your reasoning.
b. Which set of bulbs will burathe brightest? The dimmest? Explain your
reasoning.
C. Which battery will last the longest? The shortest? Explain your
reasoning.
B.
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