How Long for Potential Difference to Reach 50 Volts in an Oscilloscope?

AI Thread Summary
The discussion focuses on calculating the time it takes for the potential difference across the deflection plates of an oscilloscope to reach 50 volts after a 100-volt potential is applied. The setup involves a capacitor formed by the plates with a gap distance and a resistor in series. The key equation mentioned is q = c*(delta_V), indicating the relationship between charge, capacitance, and voltage change. The problem is framed as an RC circuit, suggesting that the charging time can be derived from standard capacitor charging equations. Understanding these concepts is crucial for solving the problem accurately.
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Homework Statement


The deflection plates in an oscilloscope are 10 cm by 2 cm with a gap distance of 1 mm. A 100 volt potential difference is suddenly applied to the initially uncharged plates through a 900 ohm resistor in series with the deflection plates. How long does it take for the potential difference between the deflection plates to reach 50 volts?


Homework Equations


q=c*(delta_V)


The Attempt at a Solution


There has to be an equation that I am missing or need
 
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The whole problems converts into a RC circuit.
Find the expression for the charging of the capacitance.
 

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