Physics Review Question Unit: Electricity Year: 1989 Question#: 57 Question: As the resistance of a constant-voltage circuit is increased, the power developed in the circuit (1 ) decreases (2 ) increases (3 ) remains the same What is this question really asking? Explanation by: Anna R [ Return to question menu ] Answer 1 decreases CORRECT The formula for power is P=v2/R, so if the resistance (R) is increased, the power would decrease. return to top Answer 2 increases INCORRECT The formula for power is P=v2/R, so if the resistance (R) is increased... try again. return to top Answer 3 remains the same INCORRECT The formula for power is P=v2/R, so if the resistance (R) is increased... try again. return to top return to top What's this question really asking? Do you know how to find and manipulate the formula for power given info about voltage and resistance? return to tops for Technology i |