Question

2. A student connects three capacitors G = 4.50 pF,C2 = 5.20 uF, C3 = 6.20 uF to a 6.00 V battery. a. The three capacitors are connected in series across the battery. i. Find the equivalent capacitance of the circuit. ii. Calculate the total charge stored in the combination. b. The three capacitors are now connected in parallel. i. What is equivalent capacitance? ii. What is the energy stored by the combination of the capacitors? 3. A graph of charge against potential difference for a capacitor C is shown below. 1 Q(pc) a. What is the capacitance of the capacitor? b. Find the Energy stored by the capacitor. 1 2 3 4 V[V) c. The above capacitor C is now connected to another identical one in series. What is the equivalent capacitance? d. A 15V battery is now connected across the above series combination of the capacitors. What is the total charge stored when they are completely charged. 4. The parallel-plates of a capacitor with an area of 0.400 m2 and separated by a distance of 2.00 mm are connected to a 9.00 V battery. a. Calculate the capacitance of the capacitor. b. Find the charge stored on the plates. C. Calculate the electric field between the plates.

Answer 1

2 с. – Ч.5 ЦF C, 52 ДЕ L, 4.2 ME = by 4) 1) 11, 2 . С . - 33, 54 195 OC (c= 1.25 мг 1) O = CV - 1,734fxto р? 10.33 и с Б) C-C +С, *, - 15,9 цE 1) E 1 сv2 - 2 36,25

3) dhe Ocu c-g or slope of graph [c=10ff 6) E- 1 C12 9) Cette = ? 15 = 106 Fx 15 = 756C -12 - 6.4 x 8.85x16th - 1.27x10 - a) -. 2x10-3 b) 0 = CV = 6,77810-= 15,93 nc 2x 103 c) EV 2 – 4.5 x 103 4.5 X Lo 2x103