Series and Parallel Circuits

Front

What is a series circuit?

Back

A series circuit is a type of electrical circuit in which components are connected end-to-end, so that the same current flows through each component.

Front

What is a parallel circuit?

Back

A parallel circuit is a type of electrical circuit in which components are connected across common points or junctions, allowing multiple paths for the current to flow.

Front

How does adding resistors in series affect total resistance?

Back

Adding resistors in series increases the total resistance of the circuit.

Front

How does adding resistors in parallel affect total resistance?

Back

Adding resistors in parallel decreases the total resistance of the circuit.

Front

What is Ohm's Law?

Back

Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R). It is expressed as V = I × R.

Front

What is the formula for total resistance in a series circuit?

Back

The total resistance (R_total) in a series circuit is the sum of the individual resistances: R_total = R1 + R2 + R3 + ...

Front

What is the formula for total resistance in a parallel circuit?

Back

The total resistance (R_total) in a parallel circuit is given by the formula: 1/R_total = 1/R1 + 1/R2 + 1/R3 + ...

Front

What happens to the current in a series circuit if one component fails?

Back

If one component in a series circuit fails, the entire circuit is broken and the current stops flowing.

Front

What happens to the current in a parallel circuit if one component fails?

Back

If one component in a parallel circuit fails, the current can still flow through the other paths, so the circuit continues to operate.

Front

What is the total current in a circuit with a 9V battery and a total resistance of 25 ohms?

Back

Using Ohm's Law (I = V/R), the total current is I = 9V / 25Ω = 0.36 amps.