A science-fair radio uses a homemade capacitor made of two 2.3 cm × 2.3 cm sheets of aluminum foil separated by a 0.65-mm-thick sheet of paper. The dielectric constant of paper is 3.0. What is its capacitance, in pF? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.
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Water constitutes about 70% of earth. Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.
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An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.
A science-fair radio uses a homemade capacitor made of two 2.3 cm × 2.3 cm sheets of aluminum foil separated by a 0.65-mm-thick sheet of paper. The dielectric constant of paper is 3.0. What is its capacitance, in pF?
Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.
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