K.C.S.E Physics Q & A - MODEL 2006PP2QN17

K.C.S.E Physics Q & A - MODEL 2006PP2QN17

Figure 7 shows a circuit where a battery of emf 4.5V, switches A and B, two capacitors C1 = 0.3μF and C2 = 0.5 μ F and a voltmeter are connected

​(a) Determine the charge on C1 when switch A is closed and switch B is open 
(b) What is the effective capacitance Ct when both switches A and B are closed?
(c) State what is observed on the voltmeter when
(i) switch A is closed and switch B is open 
(ii) Switch A is closed and opened, and then B is closed 
(iii) Explain the observation made in c (ii) above 

answer