Class Notes (836,148)
United States (324,358)
Physics (56)
PH 122 (46)
Lecture

Electric fields and conductors, lightning rod

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Department
Physics
Course
PH 122
Professor
Brian Jones
Semester
Spring

Description
31 January Warmup & Review A 10 mg housefly has developed a charge of -100 pC. On a normal day, with a 100 N/C electric field directed downward, F = qE What is the direction of the force on the fly? Does the fly “feel heavy” or “feel light” – that is, is it easier or harder for the fly to stay airborne? Upward It feels light What approximate fraction of the fly’s weight does this force represent? F = (100 x 10 -12C) (100 N/C) F = 1.0 x 10 N8 Electric fields and conductors The electric field inside the conductor is zero. All excess cha
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