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4.2 A 200 µF capacitor is connected in series with a 25 k2 resistor. The two components are now connected across a 12 V supply. Calculate the total charging time of the capacitor. n of a

4.2 A 200 µF capacitor is connected in series with a 25 k2 resistor. The two components are now connected across a 12 V supply. Calculate the total charging time of the capacitor. n of a

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Help me with 4.2 and 4.8 questions in the picture below. 

4.2 A 200 µF capacitor is connected in series with a 25 k2 resistor. The two components are now connected across a 12 V supply. Calculate the total charging time of the capacitor. n of a
Transcribed Image Text:4.2 A 200 µF capacitor is connected in series with a 25 k2 resistor. The two components are now connected across a 12 V supply. Calculate the total charging time of the capacitor. n of a
4.8 A small transistor radio uses three AAA 1,5 V cells to give an EMF of 4,5 V. When the radio is switched on, the voltage drops to 4.34 V in total. The current measurement is 400 mA. Calculate the internal resistance of the battery
Transcribed Image Text:4.8 A small transistor radio uses three AAA 1,5 V cells to give an EMF of 4,5 V. When the radio is switched on, the voltage drops to 4.34 V in total. The current measurement is 400 mA. Calculate the internal resistance of the battery
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