Question Two a. In the circuit shown in Figure 3, the 6.002 resistor is consuming energy...

 

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Question Two a. In the circuit shown in Figure 3, the 6.002 resistor is consuming energy at a rate of 24 J/s when the current through it flows as shown. (i) Find the current through the ammeter A. (ii) What are the polarity and emf e of the battery, assuming it has negligible internal resistance? 1702 www 25 V-3 w 1302 3600 2000 190 20.002 www 3.00 www 100 Figure 3 (12 marks) b. A resistor with R-85002 is connected to the plates of a charged capacitor with capacitance C=4.62μF Just before the connection is made, the charge on the capacitor is 6.90mC (i) What is the energy initially stored in the capacitor? (ii) What is the electrical power dissipated in the resistor just after the connection is made? (iii) What is the electrical power dissipated in the resistor at the instant when the energy stored in the capacitor has decreased to half the value calculated in part (a)? (8 marks) Question Two a. In the circuit shown in Figure 3, the 6.002 resistor is consuming energy at a rate of 24 J/s when the current through it flows as shown. (i) Find the current through the ammeter A. (ii) What are the polarity and emf e of the battery, assuming it has negligible internal resistance? 1702 www 25 V-3 w 1302 3600 2000 190 20.002 www 3.00 www 100 Figure 3 (12 marks) b. A resistor with R-85002 is connected to the plates of a charged capacitor with capacitance C=4.62μF Just before the connection is made, the charge on the capacitor is 6.90mC (i) What is the energy initially stored in the capacitor? (ii) What is the electrical power dissipated in the resistor just after the connection is made? (iii) What is the electrical power dissipated in the resistor at the instant when the energy stored in the capacitor has decreased to half the value calculated in part (a)? (8 marks)

Answer rating: 100% (QA)

Lets solve each part step by step a i To find the current through the ammeter A we can use the given power consumption by the 60 resistor and the power formula The power P consumed by a resistor is gi... View the full answer