Answer to Question #127840 in Electric Circuits for JABO

Question #127840
A cylinder has a radius of 2.1 cm and a length of 8.8 cm. Total charge 6.1*10-7 C is distributed uniformly throughout. The volume charge density is:
1
Expert's answer
2020-07-30T11:00:53-0400

p = Charge Volume Density

p=qvp= \frac{q}{v}

q=6.1×107Cq = 6.1 \times10^{-7} C

v=πr2hv = \pi r^{2} h

v=π×2.1×2.1×8.8×102v = \pi\times 2.1\times 2.1\times8.8\times 10^{-2}

v=122.23×106m3v = 122.23\times10^{-6} m^{3}

p=6.1×107122.23×106p = \frac{6.1\times 10^{-7}}{122.23\times 10^{-6} }

p=0.04×106C/m3p = 0.04\times10^{-6} C/m^{3}


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