Question

A stereo receiver is plugged into a 120-volt outlet. If the receiver has a resistance of 240 ohms, how much current does it use

Answer 1

Using Ohm's law, a stereo receiver with a resistance of 240 ohms plugged into a 120-volt outlet uses a current of 0.5 A.

Step-by-step explanation:

To calculate the current used by a stereo receiver plugged into a 120-volt outlet with a resistance of 240 ohms, we can use Ohm's law, which states V = I x R.

Step 1: Identify the given values: Voltage (V) = 120 volts, Resistance (R) = 240 ohms.

Step 2: Rearrange Ohm's law to solve for current (I): I = V / R.

Step 3: Substitute the known values into the equation: I = 120 volts / 240 ohms.

Step 4: Calculate the current: I = 0.5 Amperes (A).

Therefore, the stereo receiver uses 0.5 A of current when plugged into a 120-volt outlet.