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3 years ago

Please help it’s due very soon and this is my last attempt !!

Physics

1 answer:

Scilla [17]3 years ago

8 0

Answer:

85.9 V

Explanation:

The voltage across C₃ is 40.0 V, so the voltage between a and d must also be 40.0 V.

Find the equivalent capacitance of C₁, C₂, and C₃:

C₁₂₃ = 1 / (1/C₁ + 1/C₂) + C₃

C₁₂₃ = 1 / (1/8.00 + 1/7.00) + 2.00

C₁₂₃ = 5.73 mF

This is in series with C₄. Capacitors in series have the same charge, so:

Vad C₁₂₃ = Vbd C₄

(40.0) (5.73) = Vbd (5.00)

Vbd = 45.9 V

The total voltage is therefore:

V = Vad + Vbd

V = 40.0 + 45.9

V = 85.9 V

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Let up the incline be positive, and down the incline be negative.

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