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Physics lab report 3

Physics lab report 3 - Lab 3-Problem 1 Electrical and...

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Lab 3-Problem 1: Electrical and Mechanical Energy Problem Description: Determining how the transfer of energy from electrical energy in a capacitor, to mechanical energy is dependent on the capacitance of the capacitor. Prediction: The distance the block travels will increase as the values will increase with the voltage and the capacitance of the capacitor. This relationship is demonstrated by the equation: x = Ԑcv 22µmg Our experiment will vary the capacitance of the capacitor used and will show positive relationship between value of capacitance and distance the block travels. *The derivation of the equations can be found in the data section. Procedure: First we gained access to necessary materials, which include: a set of masses, an electric motor with a spool attached, string, a 6V battery, a 1F capacitor, a 0.47F capacitor, a 0.22F capacitor, a track, and a digital multimeter. First we set up the track and place the block on the track. Then we tied the string (attached to the spool at the other end) to one end of the block. For three trial with each of the capacitors we used the battery to charge the capacitor, measured the voltage with the multimeter, the discharge the capacitor through the motor. The motor then pulled the block a certain distance, which we measured. This process transferred the electric potential energy in the capacitor into work which
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