Question

NEED HELP A 400 Ω resistor is connected across 200 V. What current will flow?Single choice.

(2 Points)

0.25 A

0.5 A

2.0 A

4.0 A

Answer 1

Answer: 0.5A

Step-by-step explanation:

According to Ohm's law, the Voltage(V) when a current flows through a resistor can be calculated by using the formula:

V = IR

where,

V = Voltage = 200V

I = current in amps (A)

R = resistance in ohms (Ω) = 400Ω

Current = Voltage / Resistance

I = V/R

I = 200/400

I = 0.5A

Therefore, the current is 0.5 Ampere