Question
The figure below shows a circuit where a battery of 4.5volts, switches A and B, two capacitors C1 = 3µf and C2 = 5µF and a voltmeter, V are connected.
a) Determine the amount of charge on C1 when only switch A is closed.
b) Calculate the effective capacitance of the two capacitors.
c) State what would happen on the voltmeter when;
i) Switch A is closed while switch B remains open.
ii) Switch A is now opened and switch B
iii) Explain the observation in (ii) above
a) Determine the amount of charge on C1 when only switch A is closed.
b) Calculate the effective capacitance of the two capacitors.
c) State what would happen on the voltmeter when;
i) Switch A is closed while switch B remains open.
ii) Switch A is now opened and switch B
iii) Explain the observation in (ii) above
Answer
c)
i) Voltmeter reading increases from zero to a maximum of 4.5 volts.
ii) Voltmeter reading reduces.
iii) The capacitor C1 discharges to share charge with capacitor C2
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