Physics
Grade-9
Easy
Question
As more resistors are added in series to a constant voltage source, the power supplied by the source
- Increases
- Decreases
- Does not change
- Increases for a time and then starts to decrease
Hint:
The power supplied by the source tends to decrease in a series of resistors with a fixed voltage.
The correct answer is: Decreases
As more resistors are added in series to a constant voltage source, the power supplied by the source decreases.
- The circuit with various resistors shows different voltages in each resistor.
- The resistors are fixed with a constant voltage in a series of circuits.
- Since we know, power is inversely proportional to the increase in resistance, so it will tend to decrease as more resistors are added in series.
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