Final answer:
Using Ohm's Law, the required voltage for a 2.5 A current to flow through a 50 Ω resistance is calculated as 125 V. Hence, the battery must supply 125 V.
Step-by-step explanation:
If 2.5 A of current flows through a circuit with 50 Ω of total resistance, we need to determine how much voltage the battery must supply. By using Ohm's Law, V = I × R, where V is the voltage, I is the current, and R is the resistance, we can calculate the required voltage. To calculate the voltage required to supply a given current through a circuit, we can use Ohm's Law, which states that V = IR, where V is the voltage, I is the current, and R is the resistance.
In this case, the current is 2.5 A and the resistance is 50 Ω. Plugging these values into the formula, we get:
V = (2.5 A)(50 Ω) = 125 V
Therefore, the battery must supply 125 V of voltage.
Substituting the given values:
V = 2.5 A × 50 Ω = 125 V
Therefore, the battery must supply 125 volts to ensure that a current of 2.5 A flows through the circuit. The correct answer is (c) 125 V.