Question

3) A 10 ohm resistor and a 5 ohm resistor are connected in a series. A 2 A current

runs through the 10 ohm resistor. What is the potential difference in the 5 ohm resistor?
a) 10 V
c) 30 V
b) 20V
d) 40 V

Answer 1

The correct answer is the a) 10V

Step-by-step explanation:
You know that 10 ohm resistor and 5 ohm resistor are connected in series so the potential difference between the two resistors is different
So you had to do:
∆V2= R2 • I(tot)= 5•2= 10V

Tell me if you need the explanation

Answer 2

To find the potential difference (V) across a resistor, you can use Ohm's Law, which states that V = I * R, where I is the current and R is the resistance.

In this case, the 10 ohm resistor has a current of 2 A passing through it. Therefore, the potential difference across the 10 ohm resistor is V = 2 A * 10 ohms = 20 V.

Since the 5 ohm resistor is connected in series with the 10 ohm resistor, the potential difference across both resistors will be the same. Thus, the potential difference across the 5 ohm resistor is also 20 V.

Therefore, the correct answer is b) 20 V.