An audio amplifier, represented by the AC source and the resistor R in the figure below, delivers alternating voltages at audio frequencies to the speaker. If the source puts out an alternating voltage of 12.0 V (rms), the resistance R is 8.20 Ω, and the speaker is equivalent to a resistance of 12.4 Ω, what is the time-averaged power delivered to the speaker?
An audio amplifier, represented by the AC source and the resistor R in the figure below,...
An audio amplifier, represented by the AC source and the resistor R in the figure below, delivers alternating voltages at audio frequencies to the speaker. If the source puts out an alternating voltage of 18.0 V (rms), the resistance R is 8.20 Ω, and the speaker is equivalent to a resistance of 10.3 Ω, what is the time-averaged power delivered to the speaker?
An AC voltage source is connected to a resistor R = 1.90 102 Ω. The output from an AC voltage source is given by the expression V = (3.00 102 V) sin 2πft. (a) What is the rms voltage across the resistor? ____ V (b) What is the rms current flowing through the resistor? ____ A
The figure below shows an AC source, a transformer with a turns ratio of N1/N2 = 2.40, a source resistor RS,and a load resistor RL. A circuit contains an AC source, two resistors, and a transformer composed of two coils. The transformer will bridge two halves of an otherwise disjoint circuit. The left half of the circuit starts on the left at the AC source labeled ΔVS, goes up and to the right to a resistor labeled RS, goes down...
A resistor with a 100 Ω is connected to an AC source with a maximum voltage of 10V. The RMS current and the average power of this resistor are?
In the circuit given in Figure below, the resistor (R L ) is adjusted until it absorbs maximum power from the circuit. Find the following:a) Thevenin equivalent voltage using node voltage methodb) Thevenin equivalent resistance using methodc) Thevenin equivalent resistance using the test-source methodd) Value of R L for maximum power transfer and maximum power delivered to the load resistor
1. A resistor R and capacitor care connected in series with an AC voltage source with frequency f and maximum voltage Vo. a. Find the complex impedance (in the form Z = R + jX). If the impedance is written in polar form (Z = Zejº), find expressions for Z and Ⓡ. Write your answers in terms of the variables R, C, and o(= 21f). b. If the voltage source is described by the phasor V = V, ejwt, and...
The instantaneous power dissipated by a 20Ω resistor connected to an AC source is shown in (Figure 1).Part AWhat is the \(\mathrm{rms}\) voltage across the resistor?Part BWhat is the peak current through the resistor?Part CWhat is the frequency of the AC source?
11.10 The circuit shown in Fig. P11.10 uses a 12-V ac source to deliver power to an 8-Ω speaker. If the average power delivered to the speaker is 1.8 W at an audio frequency f= 1 kHz, what is the value of the coupling coefficient k? 4Ω 12 cos 2z/t (V) 3mH 12 mH 8Ω Figure P11.10: Circuit for Problem 11.10.
In the AC circuit shown in the figure below, R = 70.0 Ω and the output voltage of the AC source is ΔVmax sin(ωt). A square circuit is shown. On its left side is an AC source of voltage ΔVmax sin(ωt). On the right side of the loop is a resistor of resistance R. (a) If ΔvR = 0.255 ΔVmax for the first time at t = 0.0110 s, what is the angular frequency of the source? rad/s (b) What...
Please solve this Question Figure Q4 shows a common-source amplifier. Construct the ac equivalent circuit, then apply Miller's Theorem and hence show that the voltage gain is given as: where J-is the voltage gain bandwidth. R, = RD //RL and C-C,, + (I + g.Rjcgd」 State clearly any approximations or assumptions used in your analysis. The parameters above are defined as follows: gm is the transistor transconductance, Ce and Cet are the internal capacitances between the gate/source and gate/drain respectively...