How many distinct input combinations are defined for a 2-input logic circuit when using a truth table?

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Multiple Choice

How many distinct input combinations are defined for a 2-input logic circuit when using a truth table?

Explanation:
Each input bit has two possible states, 0 or 1. The total number of input patterns is 2^n, where n is the number of inputs. For two inputs, that’s 2^2 = 4. A truth table for two inputs lists four rows corresponding to the combinations 00, 01, 10, and 11, covering every possible input scenario. So there are four distinct input combinations. (With one input you’d have two combinations, with three inputs eight, with four inputs sixteen.)

Each input bit has two possible states, 0 or 1. The total number of input patterns is 2^n, where n is the number of inputs. For two inputs, that’s 2^2 = 4. A truth table for two inputs lists four rows corresponding to the combinations 00, 01, 10, and 11, covering every possible input scenario. So there are four distinct input combinations. (With one input you’d have two combinations, with three inputs eight, with four inputs sixteen.)

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