# Digital Electronics - Boolean Algebra and Logic Simplification

Exercise : Boolean Algebra and Logic Simplification - General Questions
41.
An OR gate with schematic "bubbles" on its inputs performs the same functions as a(n)________ gate.
NOR
OR
NOT
NAND
Explanation:
No answer description is available. Let's discuss.

42.
Which of the examples below expresses the commutative law of multiplication?
A + B = B + A
AB = B + A
AB = BA
AB = A × B
Explanation:
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43.
Determine the binary values of the variables for which the following standard POS expression is equal to 0.
(0 + 1 + 0)(1 + 0 + 1)
(1 + 1 + 1)(0 + 0 + 0)
(0 + 0 + 0)(1 + 0 + 1)
(1 + 1 + 0)(1 + 0 + 0)
Explanation:
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44.
The expression W(X + YZ) can be converted to SOP form by applying which law?
associative law
commutative law
distributive law
none of the above
Explanation:
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45.
The commutative law of addition and multiplication indicates that:
we can group variables in an AND or in an OR any way we want
an expression can be expanded by multiplying term by term just the same as in ordinary algebra
the way we OR or AND two variables is unimportant because the result is the same
the factoring of Boolean expressions requires the multiplication of product terms that contain like variables