Voltage Dividers: SAQ Solutions

Listed below are the solutions to the SAQ on Voltage Dividers:

1. B. To produce a fixed voltage fraction of the input voltage.
   Voltage dividers are passive circuit elements and thus cannot amplify the voltage. They also cannot invert voltage. As the name suggests voltage dividers are used to divide voltage across circuit elements, not current.
2. False. A voltage divider circuit can be made up of resistors, capacitors, or inductors (passive circuit elements).
   Any of these passive circuit elements can be used because a voltage divider only requires that the elements used create a voltage drop across them so that the output voltage is some fraction of the input.
3. Any response in which the ratio of the output resistance to the total resistance is ¼ is acceptable.
   The voltage drop across the whole circuit will only be 20 V if that is what is input into the circuit. If the output voltage needs to be ¼ of the input voltage, the circuit element across which the output voltage is taken should facilitate ¼ of the circuit resistance so that only ¼ of the voltage drop occurs across it.