Electric Circuits Answers

Consider a two-input NAND gate. Which of the following inputs to this NAND gate will give an output of Logic 0?

Consider a two-input NOR gate. Which of the following inputs to this NOR gate will give an output of Logic 1?

A comparator circuit, together with the waveform diagrams are shown below.

In a previous question, you determined which inputs of the comparator V1 and V2 were connected to.

What happens to the output signal in RED if V1 is increased from 0V to 2V, assuming that that the signal V2 has a value of 1.9Vrms.

A comparator circuit is shown below. You are required to identify which of the following options is true in order for the circuit to reflect the waveforms shown in the second diagram.
(There can be more than ONE Right answer for this particular question).

A temperature sensor produces an output of 100mV at 20°C and 200mV at 40°C.

You designed the components for an opamp using the non-inverting configuration in a previous question so that the output voltage at 20°C will now be 1.1V.

What would the voltage of the output signal of the opamp circuit be if the temperature around the sensor was now 40°C?

Assume that you have used the same values that you correctly calculated for R1 & R2 in the previous question.

A temperature sensor produces an output of 100mV at 20°C and 200mV at 40°C

You are required to design a circuit using an opamp using the non-inverting configuration so that the output voltage of the opamp at 20°C will now be 1.1V.

Calculate the values of R1 and R2 that would be required.

The figure shows an application for an opamp device. R2 = 10kΩ, R1 = 1kΩ.
An input signal of 3V is applied to the input, V1.
If +12V and -12V are used for the supply rails what would the value of the signal at the output be?

For the circuit given below, the value of V1 is :

http://i60.tinypic.com/2n864x.jpg