Which bit has the lowest weight and current in a binary number?

The least significant bit (LSB) in a binary number holds the lowest weight and contributes the least to the overall value of the number. In the binary numbering system, each position represents a power of 2, starting from the rightmost bit. The rightmost bit, or LSB, represents (2^0), which is 1.

As you move to the left, each subsequent bit represents a higher power of 2, increasing the weight and the impact that bit has on the total value of the binary number. The most significant bit (MSB), for instance, represents the highest power of 2, thus contributing far more to the overall value than the LSB. Intermediate bits fall between the LSB and the MSB, each holding a value that is higher than the LSB but lower than the MSB.

Thus, the LSB is crucial because it not only has the lowest numeric value but is also the bit that can change the number's parity (from even to odd) with its state, showcasing its fundamental role in the binary structure.