which of the following is not a law for a par...
which of the following is not a law for a parallel circuit?\no a. resistance goes down when more parallel paths are added.\no b. current flow from individual legs adds up in parallel.\no c. voltage stays the same at all common parallel circuit inputs.\no d. voltage changes at all common parallel circuit inputs.
Answer
# Answer:
D. Voltage changes at all common parallel circuit inputs.
# Explanation:
## Step1: Recall parallel - circuit laws
In a parallel circuit, the voltage across each branch is the same as the voltage of the source. So, option C is a correct law.
## Step2: Analyze resistance property
When more parallel paths are added in a parallel circuit, the equivalent resistance decreases. Option A is a correct law.
## Step3: Analyze current property
The total current in a parallel circuit is the sum of the currents in individual branches. Option B is a correct statement about current in parallel circuits.
## Step4: Determine the incorrect option
Since the voltage remains the same across all common parallel - circuit inputs (branches), option D which says voltage changes at all common parallel circuit inputs is not a law for a parallel circuit.