330. Compute the Gauss law for D= 10ρ3 /4 i, in cylindrical coordinates with ρ= 4m, z=0 and z=5. a) 6100 π b) 6200 π c) 6300 π d) 6400 π
330. Compute the Gauss law for D= 10ρ3 /4 i, in cylindrical coordinates with ρ= 4m, z=0 and z=5. a) 6100 π b) 6200 π c) 6300 π d) 6400 π
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Answer: d
Explanation: ∫∫ D.ds = ∫∫ (10ρ3
/4).(ρ dφ dz), which is the integral to be evaluated. Put ρ =
4m, z = 0→5 and φ = 0→2π, the integral evaluates to 6400π.
Answer: b
Explanation: The high value of magnetic to electrical boarding ratio gives a high volume
of iron. But the high value of magnetic to electrical boarding ratio gives low copper
volume.
d) 6400 π
Answer: d
Explanation: ∫∫ D.ds = ∫∫ (10ρ3
/4).(ρ dφ dz), which is the integral to be evaluated. Put ρ =
4m, z = 0→5 and φ = 0→2π, the integral evaluates to 6400π
Answer: d
Explanation: ∫∫ D.ds = ∫∫ (10ρ3
/4).(ρ dφ dz), which is the integral to be evaluated. Put ρ =
4m, z = 0→5 and φ = 0→2π, the integral evaluates to 6400π.