Question

What is the current flowing in the circuit shown? (The resistor is 100$Ω$, and the voltage is +6V and +5V).

• A. 10 mA
• B. 50 mA
• C. 100 mA
• D. 0.1 A

Hint:

In circuits with resistors, use Ohm’s law to calculate current: \( I = \frac{V}{R} \). Ensure the total voltage is considered correctly for multiple voltage sources.

Answer 1

The Correct Option is A

Step 1: Apply Ohm's Law.
Ohm’s Law states that the current \( I \) through a resistor is given by: \[ I = \frac{V}{R} \] where: - \( V \) is the potential difference across the resistor, - \( R \) is the resistance.
Step 2: Calculate the total voltage across the resistor.
The total voltage across the resistor is the difference between the two voltage sources: \[ V = 6V - 5V = 1V \]
Step 3: Calculate the current.
Now, using the value of \( R = 100Ω \) and \( V = 1V \), we can calculate the current: \[ I = \frac{1V}{100Ω} = 10 \, \text{mA} \]
Step 4: Conclusion.
The current flowing in the circuit is \( 10 \, \text{mA} \), so the correct answer is (A).