Question

Notify Me Bookmark

A total resistance of 3.0 Ω is to be produced by combining an unknown resistor R with a 12 Ω resistor. What is the value of R and how is it to be connected to the 12 Ω resistor? 2.4 Ω, parallel 2.4 Ω, series 4.0 Ω, parallel 4.0 Ω, series 9.0 Ω, series

A total resistance of 3.0 Ω is to be produced by combining an unknown resistor R with a 12 Ω resistor. What is the value of R and how is it to be connected to the 12 Ω resistor? 2.4 Ω, parallel 2.4 Ω, series 4.0 Ω, parallel 4.0 Ω, series 9.0 Ω, series

Image text
A total resistance of 3.0 Ω is to be produced by combining an unknown resistor R with a 12 Ω resistor. What is the value of R and how is it to be connected to the 12 Ω resistor? 2.4 Ω , parallel 2.4 Ω , series 4.0 Ω , parallel 4.0 Ω , series 9.0 Ω , series

Detailed Answer

0 0

Please enter your email here. You will get email when this question is answered by our tutor.

Doubtrix Logo

Problem is not yet solved!

Click on Notify me to get email when question is answered.

Join Doubtrix with 7-days free trial

  • Icon Correct & Verified Answers
  • Icon No AI-Generated Answers
  • Icon Video Solution for Difficult Questions
  • Icon Work With Experts to Reach at Correct Answers
Notify me Login Sign Up

Similar/Related Questions

The below BJT common-emitter amplifier with β = 100 is fed with a signal source that has a resistance of 5 kΩ. A load resistor of 5 kΩ is connected to the output of the circuit as shown in the figure. The input resistance of the amplifier is Ri = 2 kΩ and its output resistance is Ro = 5 kΩ. Find the bias current (1), and the small signal parameters. Use VT = 25 mV. If the peak value of Vπ (denoted by V^π ) is to be limited to 5 mV, what are the corresponding peak value of Vsig (denoted by V^sig ) and peak value of V0 (denoted by v^0 ) in presence of the load resistor? Instructions: Use the given input and output resistance values and the equations related to these quantities (from the lecture notes) to find the small signal parameters and the bias current. To find the peak value of vsig, you need to draw the small signal circuit. replace v/with vsig in series with a 5 k resistor. From the signal circuit, find out how Vπ is related to Vsig. Calculate the open loop voltage gain, and use it with the given load resistor value and the voltage amplifier model to find out how V0 is related to Vsig in the presence of the load. You can also solve the signal circuit to find the answer. v^sig = 17.5 mV V^0 = 1.5 V v^0 = 0.4 V
Solution
0 0

a) A square wave oscillator is to be build using 555 timer IC. The value of R1 = 8.6 kΩ (the upper resistor between Pin7 and Pin8) while the value of R2 = 1 kΩ (the lower resistor between Pin6 and Pin7). A 10 kΩ-potentiometer is connected in series with R2. The value of C = 1000 pF. Calculate the minimum and maximum frequency and minimum and maximum duty cycle. Show how you will modify the circuit design for a 50% duty cycle. b) For the following circuit, calculate the internal drain-source resistance of the JFET and the output frequency. Given that: R1 = R2 = 15 kΩ, R4 = 1.5 kΩ. Describe the rule of the transistor in this circuit.
Solution
0 0

Consider the circuit shown in the figure below. (Assume R1 = 11.0 Ω, R2 = 2.20 Ω, and V = 7.85 V.) (a) Calculate the equivalent resistance of the R1 and 5.00−Ω resistors connected in parallel. Ω (b) Using the result of part (a), calculate the combined resistance of the R1, 5.00−Ω and 4.00−Ω resistors. Ω (c) Calculate the equivalent resistance of the combined resistance found in part (b) and the parallel 3.00-Ω resistor. Ω (d) Combine the equivalent resistance found in part (c) with the R2 resistor. Ω (e) Calculate the total current in the circuit. A (f) What is the voltage drop across the R2 resistor? V (g) Subtracting the result of part (f) from the battery voltage, find the voltage across the 3.00−Ω resistor. V (h) Calculate the current in the 3.00−Ω resistor. A
Solution
0 0