How to find total resistance
Answers
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:
We have two equations to find the resistance in a given circuit.
Explanation:
Before selecting the equations we have to find from the circuit whether the resistances are connected in series or parallel methods.
Let R₁ and R₂ be the two resistances connected in a series pattern. Then the total resistance, R is calculated using the equation: R = R₁ + R₂
If the same resistors are connected in parallel pattern, the total resistance can be calculated as (1÷R) = (1÷R₁) + (1÷R₂)