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    Capacitance, charge, area related physics questions

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    1) A capacitor has a charge of 0.002C when it is connected across a 100V battery, Find its capacitance.
    2) A capacitor has a capacitance of 6.40uF. How much charge must be removed to lower the potential difference of its plate by 50.0V?
    3) The plates of a parallel-plate capacitor have areas of 40cm2 and are separated by 0.2mm of waxed paper (K=2.2). Find its capacitance.

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    Capacitance

    1. A capacitor has a charge of 0.002C when it is connected across a 100V battery, Find its capacitance.
    Answer: 20uF
    Solution:
    You can use the equation:
    C=Q/V
    Where C is the capacitance in F, Q is the charge in C, V is the voltage in V.
    C=Q/V
    =0.002C/100V
    =2×〖10〗^(-5) F
    =20μF
    2. A capacitor has a capacitance of 6.40uF. How much charge must be removed to lower the ...

    Solution Summary

    Three questions are answered in this posting.
    1) A capacitor has a charge of 0.002C when it is connected across a 100V battery, Find its capacitance.
    2) A capacitor has a capacitance of 6.40uF. How much charge must be removed to lower the potential difference of its plate by 50.0V?
    3) The plates of a parallel-plate capacitor have areas of 40cm2 and are separated by 0.2mm of waxed paper (K=2.2). Find its capacitance.
    Detail solutions are worked out with equations given.

    $2.49

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