Ohm's Law in Series Circuits*

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) of the conductor. It is expressed as V = I * R.

Front

How do you calculate current in a circuit using Ohm's Law?

Back

Current (I) can be calculated using the formula I = V / R, where V is the voltage and R is the resistance.

Front

What is the unit of current?

Back

The unit of current is the Ampere (A).

Front

What is the unit of voltage?

Back

The unit of voltage is the Volt (V).

Front

What is the unit of resistance?

Back

The unit of resistance is the Ohm (Ω).

Front

In a series circuit, how does the total resistance compare to individual resistances?

Back

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

Front

How do you calculate the total voltage in a series circuit?

Back

The total voltage in a series circuit is the sum of the voltages across each component: V_total = V1 + V2 + V3 + ...

Front

What happens to the current in a series circuit?

Back

In a series circuit, the current is the same through all components.

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 and R is its resistance.

Front

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

Back

In a series circuit, the voltage across each resistor is proportional to its resistance, and the total voltage is equal to the sum of the individual voltage drops.