An electric train uses a power source of 25 volts. If the train track has a total of 45 ohms of resistance, what is the current passing through the tracks?
We can use Ohm's Law to solve this problem:
V = I * R
where V is the voltage, I is the current, and R is the resistance.
We are given V = 25 volts and R = 45 ohms. Solving for I, we get:
I = V / R
I = 25 / 45
I = 0.56 amps (rounded to two decimal places)
Therefore, the current passing through the tracks is 0.56 amps.
To calculate the current passing through the tracks, you can use Ohm's Law, which states that current (I) is equal to voltage (V) divided by resistance (R).
In this case, the voltage is 25 volts and the resistance is 45 ohms. Plugging these values into the formula:
I = V / R
I = 25 volts / 45 ohms
Dividing 25 volts by 45 ohms gives:
I = 0.56 amperes
Therefore, the current passing through the tracks is 0.56 amperes.