If an AC circuit consists of a 220 mH inductor in series with a 25 pF capacitor and an AC generator with rms voltage of 12 V. If the frequency of the generator is 55 kHz, what will the rms voltage drop across the inductor be?
A. 5.4 V
B. 11.80 V
C. 6.6 V
D. 0.20 V
C. 6.6 V
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We have an initially uncharged hollow metallic sphere with radius of 5.0 cm. I place a small object with a charge of +20 µC at the center of the sphere through a hole in the surface. Find the electric field present at a point 10 cm from the sphere's center. (ke = 8.99 × 10^9 N/m2/C2)
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