A parallel-plate capacitor initially has l=3 cm, b=1 cm and d=3 μm. Which changes increase its capacitance by a factor 10? A: l=6 cm,b=5 cm,d=3 μm; B: l=5 cm,b=2 cm,d=1 μm; C: l=5 cm,b=1 cm,d=30 μm; D: l=1 cm,b=1 cm,d=30 μm.
Physics · Capacitor · parallel plate capacitor ,cylindrical capacitor and spherical capacitor
A parallel-plate capacitor initially has l=3 cm, b=1 cm and d=3 μm. Which changes increase its capacitance by a factor 10? A: l=6 cm,b=5 cm,d=3 μm; B: l=5 cm,b=2 cm,d=1 μm; C: l=5 cm,b=1 cm,d=30 μm; D: l=1 cm,b=1 cm,d=30 μm.
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