Series 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 current flows through each component in turn.

Front

How do you calculate total resistance in a series circuit?

Back

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

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

If the total resistance in a series circuit is 9Ω and the current is 3A, what is the voltage?

Back

Using Ohm's Law, V = I * R = 3A * 9Ω = 27V.

Front

What happens to the current in a series circuit when more resistors are added?

Back

The total resistance increases, which causes the current to decrease if the voltage remains constant.

Front

What is the relationship between voltage, current, and resistance in a series circuit?

Back

In a series circuit, the total voltage is the sum of the voltages across each component, and the current is the same through all components.

Front

What is the effect of removing a component from a series circuit?

Back

Removing a component from a series circuit breaks the circuit, causing the current to stop flowing.

Front

How do you find the voltage drop across a resistor in a series circuit?

Back

The voltage drop (V_drop) across a resistor can be calculated using Ohm's Law: V_drop = I * R, where I is the current through the resistor.

Front

What is the total voltage in a series circuit with a 12V battery and a 9V battery connected in series?

Back

The total voltage is the sum of the individual voltages: 12V + 9V = 21V.

Front

If three resistors of 2Ω, 3Ω, and 4Ω are connected in series, what is the total resistance?

Back

Total resistance = 2Ω + 3Ω + 4Ω = 9Ω.