. Thirtean resistors are connected across points and as shown in accurabe to 2 s

Question

. Thirtean resistors are connected across points and as shown in accurabe to 2 significant fgures, what is the equivalent inthe figure. If a between points A 2.0 2? 20 612 6? 20 2? 2? d) 100 e) 12 ? a) 4 0 Throe resistors are connected in the airoult showni the figure with the switch S open. All the woroctng eads have no appreciable resistance and the battery has no internal resistance. When b)6? close the which statament below accurately describe the behavior of the circuit? R. a) The total current decreases potential drop across (or voltage) R; will not change. 3 0 c) The total current will not change. d) The potential drop across (or voltage) Ra will decrease.X e) The potential drop across (or voltage) R will increase. X 7. A capacitor in a single RC loop is ntaly uncharged.Att o, the switch S is closed. R=4.0 k? What is the potential difference across the capacitor when 1-2.0 mA? a) 10 v c) 20 V d) 15 V e)5.0V

Explanation / Answer

5.

from the left side 2,2,4 ,2 and 2 ohms are in series

R1=2+2+4+2+2 =12 ohms

6 and 12 ohms are in parallel

1/R2 =1/6 +1/12

R2 =4 ohms

Again 2,2,4 ,2 and 2 ohms are in series

R3=2+2+4+2+2 =12 ohms

6 ohms and 12 ohms are in parallel

1/R4 = 1/6 +1/12

R4 =4 ohms

2,2 and 4 ohms are in series ,Therefore equivalent resistance

Req =2+2+4 =8 ohms

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