Question

Bantuin dong gaess nomer 1 dan 2 wajib pake cara

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Answer 1

Jawaban:

1.

Ea = 31,25.10⁷ N/C

Eb = 45.10⁷ N/C

Ec = 0

Va = 37,5.10⁶ volt

Vc = Vb = 45.10⁶ volt

Penjelasan:

1. Kuat medan di dalam bola = 0

Ec = 0

Eb kuat medan di B

Eb = k.q/R² = 9.10⁹. 500.10⁻⁶/0,1²

Eb = 45.10⁷ N/C

Ea kuat medan di A

Ea = = k.q/r² = 9.10⁹. 500.10⁻⁶/0,12²

Ea = 31,25.10⁷ N/C

Potensial di dalam bola sama dengan potensial di permukaan bola.

Vc = Vb = k.q/R

Vc = Vb = 9.10⁹.500.10⁻⁶/0,1

Vc = Vb = 45.10⁶ volt

Va = k.q/r = 9.10⁹.500.10⁻⁶/0,12

Va = 37,5.10⁶ volt

2.

q.E = m.g

q.σ/ε₀ = m.g

10.10⁻⁶. 1,77.10⁻⁸/(8,85.10⁻¹²) = m. 10

m = 0,02/10 = 0,002 kg

m = 2 gr