Understanding Parallel Circuits

What is the key visual indicator that components are in parallel in a circuit?

• They are connected to a single node.

• They appear parallel to each other.

• They are connected in a loop.

• They are connected in a straight line.

Which of the following is NOT part of the 'big three' calculations in parallel circuits?

• Total current

• Equivalent resistance

• Total voltage

• Total power

How do you calculate the equivalent resistance in a parallel circuit?

• Add all resistances together.

• Use the reciprocal formula.

• Subtract the smallest resistance from the largest.

• Multiply all resistances.

What is the total current in a parallel circuit if the total voltage is 20V and the equivalent resistance is 3.41 Ohms?

• 5.87 Amps

• 6.87 Amps

• 4.87 Amps

• 7.87 Amps

In a parallel circuit, what is the voltage drop across each resistor?

• It is half of the total voltage.

• It varies depending on the resistor.

• It is equal to the total voltage.

• It is double the total voltage.

Why do all resistors in a parallel circuit receive the full voltage from the battery?

• Because they are connected in series.

• Because there are no elements between them and the battery.

• Because they are connected to a single node.

• Because the battery has infinite power.

What happens to the current at a node in a parallel circuit?

• It reverses direction.

• It doubles in magnitude.

• It splits into different paths.

• It stops flowing.

How is the current through each branch in a parallel circuit determined?

• By using the voltage across the branch and total resistance.

• By using the voltage across the branch and its resistance.

• By using the total voltage and total resistance.

• By using the total current and total resistance.

If the resistance of a branch in a parallel circuit is higher, what happens to the current through it?

• The current becomes zero.

• The current decreases.

• The current increases.

• The current remains the same.

What should the sum of the currents through all branches in a parallel circuit equal?

• The total current.

• The total power.

• The total voltage.

• The total resistance.