Get ready for the FCC General Radiotelephone Operator License (GROL) exam. Study with flashcards and multiple choice questions, each with hints and detailed explanations. Prepare effectively for your licensing test!

Multiple Choice

For a circuit with a square wave input, what would be the output?

A square wave serves as a timing clock for many digital circuits. When it drives a simple two-bit binary counter, each clock edge increments the count, producing four distinct states: both bits low, one bit high, the other pattern, and both bits high. The highest state the two-bit counter can represent is when both outputs are high, which corresponds to the maximum count the counter can hold before it wraps around on the next clock edge. So the observed output in this setup is the maximum value the counter can display, which explains why that answer is chosen. If the circuit were a different type (like an integrator or differentiator), the output would take on a different shape or form, but with a square-wave clock feeding a two-bit counter, you end up at the maximum count state.

A square wave serves as a timing clock for many digital circuits. When it drives a simple two-bit binary counter, each clock edge increments the count, producing four distinct states: both bits low, one bit high, the other pattern, and both bits high. The highest state the two-bit counter can represent is when both outputs are high, which corresponds to the maximum count the counter can hold before it wraps around on the next clock edge. So the observed output in this setup is the maximum value the counter can display, which explains why that answer is chosen. If the circuit were a different type (like an integrator or differentiator), the output would take on a different shape or form, but with a square-wave clock feeding a two-bit counter, you end up at the maximum count state.