Analog and electronic circuits

Two 10 kΩ resistors are connected in series across a 10 V supply. What is the voltage at the point between them (relative to ground)?

  1. A10 V
  2. B2.5 V
  3. C5 V
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Answer: C. 5 V

For a resistive voltage divider, the output voltage = supply voltage × R2 / (R1 + R2). With equal resistors the voltage is exactly half: 10 V × 10 kΩ / 20 kΩ = 5 V.

  • A. 10 V is the supply voltage itself, not divided.
  • B. 2.5 V is a quarter, the value for a 1:3 resistor ratio.
  • C. Correct. Dividing with equal resistors gives half, 5 V.
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