Circuits and Ohms Law

Front

What is a series circuit?

Back

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

Front

What is a parallel circuit?

Back

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

Front

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

Back

If one component fails in a series circuit, the entire circuit is broken and all components will stop working.

Front

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

Back

If one component fails in a parallel circuit, the current can still flow through the other paths, so the remaining components continue to work.

Front

How do you calculate total resistance in a series circuit?

Back

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

Front

How do you calculate total resistance in a parallel circuit?

Back

In a parallel circuit, total resistance (R_total) can be calculated using the formula: 1/R_total = 1/R1 + 1/R2 + 1/R3 + ...

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): V = I * R.

Front

What is the unit of resistance?

Back

The unit of resistance is the Ohm, symbolized by the Greek letter Omega (Ω).

Front

What is the relationship between voltage, current, and resistance?

Back

The relationship is defined by Ohm's Law: Voltage (V) = Current (I) x Resistance (R).

Front

What happens to the brightness of bulbs in a series circuit if more bulbs are added?

Back

In a series circuit, adding more bulbs decreases the brightness of each bulb because the total resistance increases, reducing the current.