Question

find the total resistance of the circuit

Answer 1

Answer:

If you know the total current and the voltage across the whole circuit, you can find the total resistance using Ohm's Law: R = V / I. For example, a parallel circuit has a voltage of 9 volts and total current of 3 amps. The total resistance RT = 9 volts / 3 amps = 3 Ω.

Answer 2

Explanation:

Resistors in Series and Parallel Resistor Combinations Starting from the right hand side and using the simplified equation for two parallel resistors, we can find the equivalent resistance of the R8 to R10 combination and call it RA. RA is in series with R7 therefore the total resistance will be RA + R7 = 4 + 8 = 12Ω as shown.