Answer: 6 microC.
- A 3 microC
- B 6 microC
- C 11 microC
- D 33 microC
Correct answer: B. 6 microC
Explanation: 1/C = 1/1+1/2+1/3 = 6/6+3/6+2/6 = 11/6. C = 6/11 microF. Q = CV = (6/11) x 11 = 6 microC. All capacitors in series have same Q = 6 microC.
Field lines (radial) and equipotential lines (concentric circles) of a point charge. Equipotential surfaces are always perpendicular to the field lines. Image: Sjlegg, Public Domain, via Wikimedia Commons.
Concept context
Electric potential, equipotential surfaces, potential energy of charge systems, conductors, dielectrics, capacitors, combinations, and energy storage.
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