Circuits review

Front

What is the relationship between current in resistors in a parallel circuit?

Back

In a parallel circuit, the current is the same through all resistors: I₁ = I₂ = I₃.

Front

In a parallel circuit, which quantity remains constant across all components?

Back

Voltage remains constant throughout a parallel circuit.

Front

How do you calculate total resistance in a parallel circuit?

Back

The total resistance (R_total) in a parallel circuit is calculated using the formula: 1/R_total = 1/R₁ + 1/R₂ + 1/R₃.

Front

What is a fuse and its purpose in electrical circuits?

Back

A fuse is a safety device that breaks the circuit if the current exceeds a certain level, preventing damage.

Front

What is the total current in a circuit if the battery supplies 0.35 amps?

Back

The total current going through the battery is 0.35 amps.

Front

What is Ohm's Law?

Back

Ohm's Law states that V = I × R, where V is voltage, I is current, and R is resistance.

Front

What happens to the total current in a series circuit?

Back

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

Front

What is the formula for calculating 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 is the difference between series and parallel circuits?

Back

In series circuits, components are connected end-to-end, while in parallel circuits, components are connected across the same voltage source.

Front

What is a circuit breaker?

Back

A circuit breaker is a safety device that automatically interrupts the circuit when it detects an overload or short circuit.