A color television has a power rating of 325 W. How much current does this set draw from a potential difference of 120 V?
1 . A
i got 2.92 but its wrong?
P=I•U ,
I =P/U =325/120 =2.71 A
Well, it seems like your answer got the voltage all tangled up! Let me help you untangle this electric confusion. To find the current, we can use Ohm's Law, which states that current (I) is equal to voltage (V) divided by resistance (R). However, since we only have power (P) and voltage (V), we need to use the formula P = IV.
We know that power (P) is 325 W and voltage (V) is 120 V. So, let's rearrange the formula to solve for current (I). Dividing both sides by voltage (V), we get:
I = P / V = 325 W / 120 V ≈ 2.71 A
Therefore, the current drawn by the color television set is approximately 2.71 Amperes.
To calculate the current drawn by the color television, you can use Ohm's law, which states that current (I) is equal to the potential difference (V) divided by the resistance (R). However, since the resistance is not given directly, you can rearrange the formula to solve for current.
The power (P) of a device is equal to the potential difference (V) multiplied by the current (I). So, you can rearrange this formula to solve for current (I) as well.
Here's the step-by-step calculation:
1. Use the power formula:
P = V * I
Substitute the given values:
325 W = 120 V * I
2. Solve for I:
Divide both sides of the equation by 120 V:
325 W / 120 V = I
2.708 A = I
Therefore, the current drawn by the color television from a potential difference of 120 V is approximately 2.708 A (or 2.71 A when rounded to two decimal places).
To calculate the current drawn by the color television, you can use Ohm's Law, which states that current (I) is equal to the ratio of the potential difference (V) to the resistance (R): I = V/R.
However, in this case, we don't have the resistance of the television directly given. Instead, we have the power rating (P) of the television, which is given in watts (W). The power of an electrical device can be related to the current and voltage by the formula: P = IV.
To find the current, we can rearrange the formula to solve for I:
I = P/V.
Plugging in the given values, we have:
I = 325 W / 120 V.
Calculating this, we get:
I ≈ 2.71 A.
So, the current drawn by the color television from a potential difference of 120 V is approximately 2.71 A.