4. The current in the circuit decreases exponentially as it becomes increasingly hard to put more charge on the plate. The RC term in the exponential is called the time constant time constant T. It is clear that RC must have units of time because you can't raise a number to a power that has units. Did you know that an Ohm (2) multiplied by a Farad (F) is a second? Look up the fundamental units of both and prove that you get seconds when you multiply them.
4. The current in the circuit decreases exponentially as it becomes increasingly hard to put more charge on the plate. The RC term in the exponential is called the time constant time constant T. It is clear that RC must have units of time because you can't raise a number to a power that has units. Did you know that an Ohm (2) multiplied by a Farad (F) is a second? Look up the fundamental units of both and prove that you get seconds when you multiply them.
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Transcribed Image Text:4. The current in the circuit decreases exponentially as it becomes increasingly hard to put more charge on the
plate. The RC term in the exponential is called the time constant time constant T. It is clear that RC must have
units of time because you can't raise a number to a power that has units. Did you know that an Ohm (Q)
multiplied by a Farad (F) is a second? Look up the fundamental units of both and prove that you get seconds
when you multiply them.
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