Question

6.When a 4 Ω resistor is connected across the terminals of a 12 V battery, what will be current across it?
0.3A
3A
4A
12A​

Answer 1

3A

2nd option

Explanation:

The number of coulombs passing through the resistor is the current passing through it.

Current = Voltage/Resistance

I = V/R

I = 12/4

I = 3 A

Thus, when a 4 Ω resistor is connected across the terminals of a 12 V battery, the number of coulombs passing through the resistor per second will be 3.

Answer 2

Answer:

3A

Explanation:

because from ohms law V=IR

then I =V/R

I=12/4

I = 3A