Question hysics 1004: Set Problem 9 Take the last digit of your student number. If it is zero or one use ?2? instead. This value is the emf of the battery in volts (assume 2 sf so ?2? = 2.0 Volts) Show all work (a) Calculate the time constant of this circuit (b) Calculate the charge in coulombs when the capacitor is fully charged. Use the value from your student number for the emf of the battery. (c) If the effective capacitor C is now allowed to discharge through the effective resistance R show that the expression for the time taken for half of the initial charge to decay away is: (d) Calculate this time. (e) Calculate the initial current in milliamps just as the equivalent capacitor starts to discharge. Assume that it was fully charged by the battery.
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