If you have a 12V supply and resistors of 4Ω and 8Ω in series, what is the current through the 4Ω resistor?
Question
If you have a 12V supply and resistors of 4Ω and 8Ω in series, what is the current through the 4Ω resistor?
Solution
First, we need to find the total resistance in the circuit. Since the resistors are in series, we simply add their resistances together:
R_total = R1 + R2 = 4Ω + 8Ω = 12Ω
Next, we use Ohm's Law, which states that the current (I) is equal to the voltage (V) divided by the resistance (R). In this case, the voltage is 12V and the total resistance is 12Ω:
I = V / R = 12V / 12Ω = 1A
Since the resistors are in series, the current through each resistor is the same. Therefore, the current through the 4Ω resistor is also 1A.
Similar Questions
If the potential difference across a 12-ohm resistor is 4 volts, what is the current through it?A 0.3 AB 0.5 AC 3 AD 4 A
Four resistors of 4 ohm each are connected in parallel, four such combinations are then connected in series. Their total resistance is
50-f the battery produced 12.6 Volts and there was a 6 Ohm resistor, what would be the current?1 point2.1 Amps2.4 Amps1.71 Amps15 Amps
resistors of 4ohm 8ohm 12 ohm and 16 ohm how will you connect them to get a resistance of a)22 ohmb)4.36ohm
hen a 4V battery is connected across an unknown resistor there is a current of 100 mA in the circuit.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.