WJEC A-Level Electronics Logic Systems overview quiz quiz
14questions. Pick an answer and you'll see why right away.
A two-input AND gate gives a high output when:
Which gate gives a high output only when its two inputs differ?
De Morgan's theorem states that the inverse of (A AND B) equals:
In a sum-of-products expression read from a truth table, an input that is 0 in a high-output row appears as:
On a Karnaugh map, you should group adjacent 1s into:
Why is the NAND gate described as a universal gate?
The defining feature of sequential logic compared with combinational logic is that it:
A D-type flip-flop on an active clock edge:
A JK flip-flop with both J and K held high will:
A binary counter made from four toggling flip-flops divides the input frequency by:
A shift register is built by chaining several:
The majority function for three inputs (high when two or more inputs are high) simplifies to:
An SR latch made from cross-coupled gates is used to:
Edge triggering means a flip-flop changes state: