Charge on 7 mF Capacitor Connected to 1 V Battery

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So the voltage drop is 1 V for all the capacitors.In summary, the three capacitors with capacitance values of 5, 7, and 2 mF are connected in series to a 1 V battery. The voltage drop is the same across all the capacitors, so the charge on the positive plate of the 7 mF capacitor is 7x10^-6 C.
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GravityGirl
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Three capacitors of capacitance 5, 7, and 2 mF respectively, are connected in series to a 1 V battery. What is the charge on the positive plate of the 7 mF capacitor?

so if the capacitors are all connected to the battery... than all of them have to have a electrial potential of 1 v

since C=Q/V, then CV=Q

and then i have (7 x10^-6 F)*1V=Q which is 7x10^-6 C

that is what i am getting, but it seems to be wrong. please help me out
 
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  • #2
The capacitors are in series, so there is no requirement that they must have the same voltage across them.

- Warren
 
  • #3
ok i got it.
 

FAQ: Charge on 7 mF Capacitor Connected to 1 V Battery

How is the charge on a 7 mF capacitor connected to a 1 V battery calculated?

The charge on a capacitor is calculated by multiplying the capacitance (in Farads) by the voltage (in volts). In this case, the charge on the 7 mF capacitor would be 7 mC (milliCoulombs) since 1 mF equals 0.001 F. So, the charge would be 0.007 C (Coulombs).

What is the significance of the 7 mF capacitance in this scenario?

The 7 mF capacitance represents the amount of charge the capacitor can hold for every volt of potential difference across its plates. In other words, it is a measure of the capacitor's ability to store electrical charge.

How does the voltage of the battery affect the charge on the 7 mF capacitor?

The voltage of the battery directly affects the charge on the capacitor. As the voltage increases, so does the charge on the capacitor. In this scenario, with a 1 V battery, the charge on the 7 mF capacitor would be 0.007 C.

Is the charge on the capacitor constant or does it change over time?

The charge on the capacitor is not constant and changes over time. When the capacitor is connected to the battery, it initially charges up to the same voltage as the battery. However, as the capacitor continues to charge, the voltage across its plates increases and the charge on the capacitor increases as well.

Can the charge on the capacitor be increased by increasing the capacitance or voltage?

Yes, the charge on the capacitor can be increased by increasing either the capacitance or the voltage. This is because the charge on a capacitor is directly proportional to both the capacitance and the voltage. So, increasing either of these values will result in an increase in the charge on the capacitor.

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