10H L086 Circuit Calculations

In the diagram, what is the resistance between AB?

• 35Ω

• 25Ω

• 30Ω

• 40Ω

In the diagram, what is the resistance between CD?

• 2150Ω

• 2000Ω

• 150Ω

• 215Ω

What happens to the total current in the circuit when two bulbs are joined in parallel?

• It decreases

• It remains the same

• It increases

• It fluctuates

What is the total current in the circuit shown in the diagram?

• 5 A

• 10 A

• 15 A

• 20 A

What happens to the total current if more branches are added to a parallel circuit?

• It decreases

• It increases

• It remains the same

• It becomes zero

If the total current in a parallel circuit is 10 A and one branch has 4 A, what is the current in the other branch?

• 4 A

• 6 A

• 10 A

• 14 A

In a parallel circuit, if the voltage supply is increased, what happens to the current through each branch?

• It decreases

• It increases

• It remains the same

• It becomes zero

In a parallel circuit, the total current through the whole circuit is:

• The same as the current through one component

• The sum of the currents through the separate components

• Half of the current through one component

• Double the current through one component

In circuit (a), if the current through A1 is 3A, what is the current through A2?

• 1A

• 2A

• 3A

• 4A

In circuit (b), what is the current through A4?

• 1A

• 5A

• 4A

• 6A