Multiple Choice
Two parallel circular plates with radius 7.0 mm carrying equal-magnitude surface charge densities of ±3.0 μC/m2 are separated by a distance of 1.0 mm.How much stored energy do the plates have?
A) 78 nJ
B) 25 nJ
C) 7.9 nJ
D) 250 nJ
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q21: A parallel-plate capacitor has a voltage of
Q22: Consider the group of charges in this
Q23: If the potential is constant on a
Q24: A sphere with radius 2.0 mm carries
Q25: Two equal positive charges are separated by
Q27: Four charged particles (two having a charge
Q28: A parallel-plate capacitor having circular plates of
Q29: Two parallel plates that are initially uncharged
Q30: Suppose a region of space has a
Q49: If the electric field is zero everywhere