Figure 5 shows a circuit comprising a resistor, a capacitor and a switch. Write an expression...
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Figure 5 shows a circuit comprising a resistor, a capacitor and a switch. Write an expression for the Voltage Vc as a function of time (t20), if at time t=0 the switch is moved from the upper position (as shown in the diagram) to the lower. You must show your working to achieve full marks for this. [5 marks] R 10V 2V C Vc Figure 5 2.2 When an audio amplifier is switched on, the inrush of current to its power supply often causes an unpleasant "thump" to be heard through the loudspeaker that it is connected to. This is often alleviated by placing (say) a 5 second delay between an amplifier being switched on and the loudspeaker that it drives being connected to the amplifier. Use the circuit in Figure 5 and the expression you have derived in 2.1 above, along with any other components that you need, to design a circuit that will create a signal to control a binary switch that connects the loudspeaker after 5 seconds. You must sketch your proposed circuit and give numerical values for R and C to get full marks for this. [5 marks] Figure 5 shows a circuit comprising a resistor, a capacitor and a switch. Write an expression for the Voltage Vc as a function of time (t20), if at time t=0 the switch is moved from the upper position (as shown in the diagram) to the lower. You must show your working to achieve full marks for this. [5 marks] R 10V 2V C Vc Figure 5 2.2 When an audio amplifier is switched on, the inrush of current to its power supply often causes an unpleasant "thump" to be heard through the loudspeaker that it is connected to. This is often alleviated by placing (say) a 5 second delay between an amplifier being switched on and the loudspeaker that it drives being connected to the amplifier. Use the circuit in Figure 5 and the expression you have derived in 2.1 above, along with any other components that you need, to design a circuit that will create a signal to control a binary switch that connects the loudspeaker after 5 seconds. You must sketch your proposed circuit and give numerical values for R and C to get full marks for this. [5 marks]
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Related Book For
Fundamentals of Electric Circuits
ISBN: 9780073301150
3rd edition
Authors: Matthew Sadiku, Charles Alexander
Posted Date:
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