DO GO DATA: R TPD Figure 18.47 Problem 18.58. (in A) 12. AO EO (c18p58) Find the

Question

DO GO DATA: R TPD Figure 18.47 Problem 18.58. (in A) 12. AO EO (c18p58) Find the terminal potential difference of the battery in the figure, given that the internal resistance r is 275 and the load resistance R1 is 14002. in V) 9. AO 6.66 5 pt DO 9.61 GO 1.39 × 101 BO 7.52 EO 109 × 101 HO 1.57 × 101 CO 8.50 FO 1.23 x 101 5 pt (8c27p73) A controler on a electronic arcade game con- sists of a variable resistor connected across the plates of a 0.290 F capacitor. The capacitor is charged to 5.40 V, then discharged through thhe resistor. The time for the potential difference across the plates to decrease to 0.800 V is mea- sured by a clock inside the game. If the range of discharge times that can be handled effectively is from 10.0us to 6.00 ms, what should be the resistance range of the resistor? Low- end resistance? (in ohms) 10. AO 9.80 (Sc27p52) an ammete connected the electric drops to 8.4 BO 1.11 × 10' CO 1.25x101 GO 2.04x10' HO 2.31 × 101 is negligible, 13. A

Explanation / Answer

9. I = e / (r + R)

I = 9 / (275 + 1400) = 5.37 x 10^-3 A

V = e - Ir = 7.52 Volt

Ans(B)

10. V = V0 [ e^(-t/T)]

0.800 = 5.40 [ e^(-t/T) ]

t/T = - ln(0.8/5.40) = 1.91

Tmin = 5.23 x 10^-6

Tmax = 3.14 x 10^-3

and T = R C

Rmin = (5.23 x 10^-6) / (0.290 x 10^-6) = 18.1

Ans(F)

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