#23 plz! answer is C. finally, the switch is moved to position B, Immediately af
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#23 plz! answer is C.
finally, the switch is moved to position B, Immediately after the switch is moved to position B, what is the direction of the current I3 through resistor R3?
Exam Physics 212. The next three questions concern the circ below. shown. The A circuit consists of a battery, three resistors, a capacitor and a itch as for the Swi The values Rs 10 2. capacitor is initially values for the resistors are: RI 202, R2 30 AuF. The battery voltage and the capacita v time t 0 uncharged and the switch is moved to sition A at po 21. What is the current II through resistor R, right after the switch is moved to position A? 2.8 A 1.2 A c Ti 0.8 A d) 0.7 A e) In 22. What is U, the energy stored in the capacitor after the switch has been at position A for a very long time? a) 1.6 mJ 4.0 mJ c) U 8.6 mJ 23 Finally, the switch is moved to poistion B. after the switch is move to position B, what is the direction of the current 3 through resistor R3? a) 13 is equal to zero immediately after the is moved to position B. b) I has the direction opposite to that shown in the drawing. c) Ha has the direction shown in the drawing.Explanation / Answer
23. Say when the switch is positioned at point A,the maximum charge stored in the capacitor C is q0.
As the switch is moved to B,the capacitor starts discharging.Immediately agter the switch is moved to B i.e, at time t=0 the current flowing through the resistor is q0/(CR) which is not zero.This current is I3 and the direction of current I3 is the same as that given in the figure.
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