Answered

A 11.0 µF capacitor is charged to 100 V and is then connected across a 470 Ω resistor only. What is the voltage accross the capacitor after 8.00 ms?

Answer :

Answer:

The voltage across the capacitor after 8.00 ms is 35.375 V.

Explanation:

Given that,

Capacitor = 11.0 μF

Voltage = 100 V

Resistance = 470 Ω

Time = 8.00 ms

We need to calculate the current

Using formula of current

[tex]I=\dfrac{q}{t}[/tex]

[tex]I=\dfrac{CV}{t}[/tex]

Put the value into the formula

[tex]I=\dfrac{11.0\times10^{-6}\times100}{8.00\times10^{-3}}[/tex]

[tex]I=0.1375\ A[/tex]

We need to calculate the voltage

Using ohm's law

[tex]V=IR[/tex]

[tex]V=0.1375\times470[/tex]

[tex]V=64.625\ V[/tex]

We need to calculate the voltage across the capacitor after 8.00 ms

Using formula of voltage

[tex]V'=100-V[/tex]

[tex]V'=100-64.625[/tex]

[tex]V'=35.375\ V[/tex]

Hence, The voltage across the capacitor after 8.00 ms is 35.375 V.

Other Questions