Resistors in Series: Current

Current in Series Circuit

• When resistors are connected in series, the current through each resistor is the same.
• In a series circuit, the current is consistent at all points.

Formula for Total Resistance (R_total) in Series

• To calculate the total resistance (R_total) in a series circuit, add the individual resistances together.
• R_total = R₁ + R₂ + R₃ + ...

Ohm's Law for Current (I)

• Ohm's Law relates current (I), voltage (V), and resistance (R).
• The formula is: I = V / R
  • I represents current in amperes (A).
  • V is voltage in volts (V).
  • R is resistance in ohms (Ω).

Calculating Current in a Series Circuit

• To calculate current in a series circuit, you can use Ohm's Law.
• I = V / R_total
  • I is the current in the circuit.
  • V is the total voltage supplied.
  • R_total is the total resistance in the series circuit.

Example Calculation

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Resistors in Series: Current

In Summary

• In a series circuit, resistors have the same current passing through them.
• Total resistance in a series circuit is the sum of individual resistances.
• Ohm's Law ($I = V / R$) can be used to calculate current in a series circuit.
• Current in a series circuit is inversely proportional to the total resistance; higher resistance results in lower current.