Parallel Circuits

Front

What is a parallel circuit?

Back

A parallel circuit is an electrical circuit where multiple paths are available for current to flow, allowing each load to operate independently.

Front

What is the total resistance in a parallel circuit with two resistors of 50 ohms each?

Back

The total resistance (R_total) can be calculated using the formula: 1/R_total = 1/R1 + 1/R2. For two 50 ohm resistors, R_total = 25 ohms.

Front

How does current behave in a parallel circuit?

Back

In a parallel circuit, the total current is the sum of the currents through each branch, and the voltage across each branch is the same.

Front

What happens to the total resistance if more branches are added to a parallel circuit?

Back

Adding more branches to a parallel circuit decreases the total resistance.

Front

What is the effect of a short circuit in a parallel circuit?

Back

A short circuit may bypass other paths in the circuit, potentially leading to increased current flow and overheating.

Front

How can you control individual loads in a parallel circuit?

Back

Each load in a parallel circuit can be controlled independently by using switches for each branch.

Front

What is the formula for calculating total current in a parallel circuit?

Back

The total current (I_total) is the sum of the currents through each branch: I_total = I1 + I2 + I3 + ...

Front

What is the voltage across each component in a parallel circuit?

Back

The voltage across each component in a parallel circuit is the same and equal to the source voltage.

Front

If one branch of a parallel circuit fails, what happens to the other branches?

Back

If one branch fails, the other branches continue to operate normally.

Front

What is the relationship between voltage and resistance in a parallel circuit?

Back

In a parallel circuit, voltage remains constant across all components, while current varies inversely with resistance.