Question

In: Physics

5. a)Which component offers a measureable resistance to the circuit: Resistor or Capacitor? b) Let's say...

5. a)Which component offers a measureable resistance to the circuit: Resistor or Capacitor?

b) Let's say you measure t1/2 to be 0.3018 seconds and the resistance in the circuit is 68 Ohms. Then what is the capacitance in micro Farads?
answer in micro Farads.

c) t1/2 means that the voltage (or charge) of the system will increase to half more of what is left in a time equal to t1/2 seconds.
Therefore if a system is already at half charge (t1/2 seconds after starting) then after t1/2 more seconds the system will be charged to 50% plus half of 50%. That is 25% more, or 75% of the entire charge. Let's say that four t1/2's have gone by. That means that the charge (or voltage) is at (50% + 1/2*50% + 1/2*1/2*50% + 1/2*1/2*1/2*50%) = 93.75% of maximum charge.
Yikes! Now look in your manual for a more simple mathematical derivation of this concept.

Given t1/2 to be 0.9653 seconds, how long should it take to reach 75% of maximum charge?
answer in seconds.

Solutions

Expert Solution

Answers: (a). Resistance.

                 (b). Capacitance of the circuit =

                 (c). Time taking to reach 75% of the maximum charge = 1.9325s

Explanation:


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