What is the voltage across a 5Ω resistor if a current of 3A flows through it? (2
Practice Questions
Q1
What is the voltage across a 5Ω resistor if a current of 3A flows through it? (2020)
15V
10V
5V
20V
Questions & Step-by-Step Solutions
What is the voltage across a 5Ω resistor if a current of 3A flows through it? (2020)
Step 1: Identify the values given in the problem. We have a resistor with a resistance of 5 ohms (Ω) and a current of 3 amperes (A) flowing through it.
Step 2: Recall Ohm's law, which states that voltage (V) is equal to current (I) multiplied by resistance (R). The formula is V = I * R.
Step 3: Substitute the values into the formula. Here, I = 3A and R = 5Ω.
Step 4: Calculate the voltage. Multiply 3A by 5Ω to get V = 3A * 5Ω.
Step 5: Perform the multiplication. 3 * 5 = 15.
Step 6: Write down the final answer. The voltage across the 5Ω resistor is 15 volts (V).