The voltage divider circuit block provides which of the following voltages?

The voltage divider circuit block provides which of the following voltages?

• A. (+-)1.5V
• B. 0V
• C. (+-)2.5V or (+-)0.5V
• D. +-5V

Answer: (C)

A voltage divider splits the supply voltage using two series resistors, so the node between them sits at a fixed fraction of the rail set by the resistor ratio. When the divider is used to create a bias, that fraction is usually half the rail. With equal resistors and a positive rail, the midpoint sits at half the supply above ground, giving +2.5 V if the rail is +5 V. If you’re using a negative rail, the same idea yields −2.5 V relative to ground. If the rail magnitude is smaller, that midpoint scales accordingly, e.g., ±0.5 V for a ±1 V supply. So the voltage divider block provides a mid-rail bias, which matches values like ±2.5 V or ±0.5 V depending on the supply.

A voltage divider splits the supply voltage using two series resistors, so the node between them sits at a fixed fraction of the rail set by the resistor ratio. When the divider is used to create a bias, that fraction is usually half the rail. With equal resistors and a positive rail, the midpoint sits at half the supply above ground, giving +2.5 V if the rail is +5 V. If you’re using a negative rail, the same idea yields −2.5 V relative to ground. If the rail magnitude is smaller, that midpoint scales accordingly, e.g., ±0.5 V for a ±1 V supply. So the voltage divider block provides a mid-rail bias, which matches values like ±2.5 V or ±0.5 V depending on the supply.