A) The ideal transformer in Figure 1a is used to match the amplifier circuit to the...
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A) The ideal transformer in Figure 1a is used to match the amplifier circuit to the load speaker to achieve maximum power transfer. The Thevenin's (or output) impedance of the amplifier is 192 , and the internal impedance of the speaker is 12 02. I. II. Amplifier Circuit III. Ideal Transformer 1: n Speaker Figure 1a Determine the required ratio of the ideal transformer. [2] Show that indeed the power delivered to the speaker is much larger than without the ideal transformer. [3] The amplifier output voltage (Thevenin's) voltage is 10 V. Determine the amplifier output current I,, current drawn by the speaker 1, and the voltage drop across the speaker V. [3] B) A 40 ohm resistor and a 50 microfarad capacitor are connected in series and supplied with an alternating voltage v(t)=283sin314t. The supply is switched on at the instant when the voltage is zero. Determine the expression for the instantaneous current at time t. A) The ideal transformer in Figure 1a is used to match the amplifier circuit to the load speaker to achieve maximum power transfer. The Thevenin's (or output) impedance of the amplifier is 192 , and the internal impedance of the speaker is 12 02. I. II. Amplifier Circuit III. Ideal Transformer 1: n Speaker Figure 1a Determine the required ratio of the ideal transformer. [2] Show that indeed the power delivered to the speaker is much larger than without the ideal transformer. [3] The amplifier output voltage (Thevenin's) voltage is 10 V. Determine the amplifier output current I,, current drawn by the speaker 1, and the voltage drop across the speaker V. [3] B) A 40 ohm resistor and a 50 microfarad capacitor are connected in series and supplied with an alternating voltage v(t)=283sin314t. The supply is switched on at the instant when the voltage is zero. Determine the expression for the instantaneous current at time t.
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A I The required ratio of the ideal transformer is to match the amplifier outpu... View the full answer
Related Book For
Fundamentals Of Electric Circuits
ISBN: 9780073301150
3rd Edition
Authors: Matthew Sadiku, Charles Alexander
Posted Date:
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