What is the resistance of a circuit that is being supplied by a 100VDC power source that is putting out 5 amps?

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Multiple Choice

What is the resistance of a circuit that is being supplied by a 100VDC power source that is putting out 5 amps?

Explanation:
Ohm's law in action: V = I × R. To find resistance when voltage and current are known, use R = V / I. With a 100 V DC supply and 5 A flowing, the resistance is 100 divided by 5, which equals 20 ohms. This means the circuit presents 20 Ω to the power source. If you test other values, you’d see inconsistent results: 500 Ω would only allow about 0.2 A at 100 V; 0.05 Ω would draw about 2000 A; 25 Ω would yield about 4 A.

Ohm's law in action: V = I × R. To find resistance when voltage and current are known, use R = V / I. With a 100 V DC supply and 5 A flowing, the resistance is 100 divided by 5, which equals 20 ohms. This means the circuit presents 20 Ω to the power source. If you test other values, you’d see inconsistent results: 500 Ω would only allow about 0.2 A at 100 V; 0.05 Ω would draw about 2000 A; 25 Ω would yield about 4 A.

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