Electric Circuits

Front

What is resistance in an electric circuit?

Back

Resistance is a measure of how hard it is for electrons to flow through a conductor, typically measured in Ohms (Ω).

Front

What is current measured in?

Back

Current is measured in Amperes (A).

Front

What is the formula to calculate current (I) in a circuit?

Back

I = V/R, where I is current, V is voltage, and R is resistance.

Front

What is voltage?

Back

Voltage, or potential difference, is the measure of electric potential energy per unit charge, measured in Volts (V).

Front

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

Back

According to Ohm's Law, V = I * R, meaning voltage equals current multiplied by resistance.

Front

What is a closed circuit?

Back

A closed circuit is a complete electrical loop that allows current to flow without interruption.

Front

What is an open circuit?

Back

An open circuit is a broken or incomplete electrical loop that prevents current from flowing.

Front

In a series circuit, how does current behave?

Back

In a series circuit, the current remains the same throughout all components.

Front

In a series circuit, how does voltage behave?

Back

In a series circuit, the total voltage is divided among the components, and the voltage across each component can vary.

Front

What happens to total resistance in a series circuit?

Back

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