Suppose that after walking across a carpeted floor you reachfor a doorknob and just before you touch it a spark jumps 0.50 cmfrom your finger to the knob. Find the minimum voltage neededbetween your finger and the doorknob to generate this spark.
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Electrostatic Potential and Capacitance
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.
Suppose that after walking across a carpeted floor you reach
for a doorknob and just before you touch it a spark jumps 0.50 cm
from your finger to the knob. Find the minimum voltage needed
between your finger and the doorknob to generate this spark.
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