ID:B 4.0 0V 6.0 14. In the circuit diagram above, which of the following stateme

Question

ID:B 4.0 0V 6.0 14. In the circuit diagram above, which of the following statements MUST be true? The equivalent resistance of the circuit is €. The 4.0 resistor dissipates more power. ,a. less than 6.0 The current through the resistors is not the same. ,d.. The 6.0 resistor dissipates more power 5. Questions 15- 18 will be based of this circuit diagram of an RC circuit: E 15 15 When the switch is set to position a, what will be the maximum charge on the capacitor after some time has passed? 89x10-3C' a b. c. 8.9C 39C 8900 C 16. What is the time constant, of this circuit a. 8900 s b. 89s c. 890s 17. After the capacitor is fully charged, the switch is moved to position &. The moment the switch is moved to this position, what will be the maximum current through the resistor? a. 0.01 A b. 0.1 A 0.001 A

Explanation / Answer

14.

equivalent resistance

Req=4+6 =10 ohms

Total current

I=10/10 =1 A

Power dissipated in each resistor

P4=I2R =12*4 =4 Watts

P6=I2R =12*6 =6 Watts

Therefore answer is "b"

15.

Maximum CHarge

Qmax=CV =15*(590*10-6) =8.9*10-3 C

16.

Time Constant

T=RC =15000*(590*10-6) =8.9 s

17.

Maximum Current

Imax=15/15000 =0.001 A

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