(1) A CdS cell (light sensitive resistor) is configured as shown in Figure Q1 (b) below using four AA batteries for a voltage source (6 V). At dusk, the resistance of the cell rises from a low resistance to above 90 kQ. The cell is used to trigger a comparator that will turn on lights if Vour is greater than approximately 2 V. What value of R will produce an output voltage of 2 V when the cell resistance is 90 k?

(1) A CdS cell (light sensitive resistor) is configured as shown in Figure Q1 (b) below using four AA batteries for a voltage source (6 V). At dusk, the resistance of the cell rises from a low resistance to above 90 kQ. The cell is used to trigger a comparator that will turn on lights if Vour is greater than approximately 2 V. What value of R will produce an output voltage of 2 V when the cell resistance is 90 k?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

For the circuit in the figurea) Determine the time constant.b) Write the mathematical expression for IL, VL and VR, after the switch is closed.c) Determine IL, VL for one, three and five time constants.d) Draw the waveforms of IL, VL and VR.
I need some help with this problem. I need to create a power supply from 110v 60hz to regulated an output between 6 and 9 v. the image is the desire circuit to acomplish the possible solution. The resistor after the bridge rectifier will work as a surge protector or current limiter for the zener diode. the other is the Load resistor. I need some sort of calculations to prove the specific values for the components to operate according to the specs that I already explain. I know the capacitor will smooth the ripple voltage etc... but I need some guidance to get actual values
A half-wave rectifier is needed to supply 15-V dc to a load that draws an average current of 250 mA. The peak-to-peak ripple is required to be 0.2 V or less. What is the minimum value allowed for the smoothing capacitance?
Draw the circuit diagram for the experimental verification of Ohm's law
Plot the output voltage for a period of time for the input voltage Vi in the figure. (Note: the diode used is silicon diode and will not be considered ideally.)
Show the output voltage for the input voltage Vi in the figure by plotting it over a period. (Note: the diode used is a silicon diode and will not be considered ideal.)
What is Basic Circuit element
Can anyone help me with this circuits question. I don’t need the design of the BW LPF just the hand calculations. Thank you
The PMMC movement (basic meter) used in DC voltmeter can be effectively used in AC oltmeters also AC voltmeters can be designed in two ways explain the difference and sketch the diagram of the two ways. design an AC voltmeter of full range 100 Vrms Using Full Wave Rectifier with multiplier resistor and a basic meter of resistance 150 and full scale current 200μA. assist your answer with a diagram.
(b) A clamper circuit has 20 Vp-p, 100 Hz square wave input voltage. The circuit consists of silicon diode IN4001 as shown in Figure Q2(b). 0.1 µF D R Vi(t) 50 k2 Vo(t) Figure Q2(b) (i) Determine the output voltage for all input voltages values. (ii) Sketch the overall output waveform, V(t).
Draw the output voltage waveform for each circuit in the Figure below and include the voltage values.
Given the circuit design for a Zener diode regulator in the previous question, what is the maximum power that will be dissipated by the Rs resistor? You are told that the source voltage Vs varies from 6 V to 11 V, the load current il varies between 2 mA and 45 mA, and the diode is an ideal 3 V Zener diode. You will need to recalculate the maximum allowable resistance Rs with your new values, as part of this question. Please enter your answer to 3 significant figures, and in Watts.