If a 100-ohm resistor is connected across 200 volts, what is the current through the resistor?

If a 100-ohm resistor is connected across 200 volts, what is the current through the resistor?

• A. 1 ampere
• B. 2 amperes
• C. 3 amperes
• D. 4 amperes

Answer: (B)

To determine the current through a resistor when a specific voltage is applied, you can use Ohm's Law, which states that the current (I) is equal to the voltage (V) divided by the resistance (R). The formula is: I = V / R In this case, you have a 100-ohm resistor connected across a voltage of 200 volts. Plugging these values into the formula gives: I = 200 volts / 100 ohms = 2 amperes. Therefore, the calculation shows that the current flowing through the resistor is 2 amperes. This demonstrates the application of Ohm's Law in a straightforward electrical circuit, confirming that under the given voltage and resistance, the current can be effectively calculated.

To determine the current through a resistor when a specific voltage is applied, you can use Ohm's Law, which states that the current (I) is equal to the voltage (V) divided by the resistance (R). The formula is:

I = V / R

In this case, you have a 100-ohm resistor connected across a voltage of 200 volts. Plugging these values into the formula gives:

I = 200 volts / 100 ohms = 2 amperes.

Therefore, the calculation shows that the current flowing through the resistor is 2 amperes. This demonstrates the application of Ohm's Law in a straightforward electrical circuit, confirming that under the given voltage and resistance, the current can be effectively calculated.