QUIZ ON ELECTRICAL CIRCUITS

In a series circuit, if one bulb burns out, what will happen to the entire circuit?

• Other bulbs will light up as usual

• Current will increase

• The entire circuit will be interrupted

• No change

In a parallel circuit, the total current from the source is:

• The same as the current in each branch

• Less than the current in one branch

• The total current in all branches

• Unchanged

The circuit used in homes is usually:

• Series circuit

• Parallel circuit

• Mixed circuit

• Single circuit

In a series circuit, the effective resistance (total) will:

• Decrease

• Increase

• Remain unchanged

• Depend on the voltage

In a parallel circuit, if one resistance is added, what happens to the total resistance?

• Increases

• Decreases

• Remains unchanged

• Depends on the length of the wire

What happens to the total current in a series circuit when the number of resistances increases?

• Current increases

• Current decreases

• Current remains the same

• No current flows

In a parallel circuit, the voltage across each branch is:

• Different according to the resistance value

• The same as the supply

• Always zero

• Half of the supply voltage

A series circuit has three resistances: 2Ω, 4Ω, and 6Ω. What is the total resistance?

• 6Ω

• 4Ω

• 12Ω

• 2Ω

Which of the following is an advantage of parallel circuits over series circuits?

• Current cannot be controlled

• Voltage is unstable

• If one component fails, the entire circuit does not function

• Other components can still function if one fails

What is the basic law used to calculate current, voltage, and resistance in a circuit?

• Newton's Law

• Boyle's Law

• Ohm's Law

• Faraday's Law