Curioustab

Home » Digital Electronics » Digital Design

Why should a LED be pulled LOW from a logic gate rather than pulled HIGH?

LOW-level current is smaller.
LOW-level current is larger.
HIGH-level current is larger.
LOW-level current is smaller and HIGH-level current is larger.

Correct Answer: LOW-level current is larger.

← Previous Question Next Question→

More Questions from Digital Design

Define a race condition for a flip-flop.
Which of the following flip-flop timing parameters indicates the time it takes a Q output to respond to a Cp input?
The main concern when using a pull-down resistor is:
What is the major advantage of the J-K flip-flop over the S-R flip-flop?
The ________ circuit overcomes the problem of switching caused by jitter on the inputs.
The output of a standard TTL NAND gate is used to pull an LED indicator LOW. The LED is in series with a 470-Ω resistor. What is the current in the circuit when the LED is on?
One example for the use of a Schmitt trigger is as a(n):
When the inputs to a flip-flop are changing at the same time that the active trigger edge of the input clock is making its transition, this condition is called:
A series RC circuit can be used to generate a power-up (automatic) reset signal.
A Schmitt trigger has a positive feedback circuit and experiences a phenomenon called hysteresis.

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion