What effect does adding a load in parallel have on the total resistance of a current?

What effect does adding a load in parallel have on the total resistance of a current?

• A. Increases
• B. Decreases
• C. Remains the same
• D. Becomes infinite

Answer: (B)

When a load is added in parallel to a current circuit, the total resistance decreases. This phenomenon occurs because adding more paths for the current to flow allows the current to take multiple routes, effectively reducing the overall load that any single path has to carry. In a parallel configuration, the total resistance can be calculated using the formula: 1/R_total = 1/R1 + 1/R2 + 1/R3 + ... where R1, R2, R3, etc., are the resistances of each parallel branch. As more resistors are added to the parallel circuit, the reciprocal of the total resistance increases, leading to a lower total resistance compared to any single resistance alone. The nature of parallel circuits allows for increased current flow, even though the voltage across each component remains equal. This is why when loads are added in parallel, the overall resistance goes down, enhancing the ability of the circuit to carry more current without significantly increasing the overall voltage across the circuit.

When a load is added in parallel to a current circuit, the total resistance decreases. This phenomenon occurs because adding more paths for the current to flow allows the current to take multiple routes, effectively reducing the overall load that any single path has to carry.

In a parallel configuration, the total resistance can be calculated using the formula:

1/R_total = 1/R1 + 1/R2 + 1/R3 + ...

where R1, R2, R3, etc., are the resistances of each parallel branch. As more resistors are added to the parallel circuit, the reciprocal of the total resistance increases, leading to a lower total resistance compared to any single resistance alone.

The nature of parallel circuits allows for increased current flow, even though the voltage across each component remains equal. This is why when loads are added in parallel, the overall resistance goes down, enhancing the ability of the circuit to carry more current without significantly increasing the overall voltage across the circuit.