Circuits Quiz

In a series circuit, if one componeneet is removed or fails, what happens to the other components?

• They continue to work
• They become brighter
• They stop working
• They operate at reduced power

In a parallel circuit, how does the voltage across each branch compare?

• It is shared equaaly among all branches
• It is the same across each branch
• It doubles for each branch
• It decreases with each added branch

What is the primary characteristic of a parallel circuit?

• Current can flow through multiple paths
• Current flows through a single path
• Voltage is divided among components
• Resistance is always the same in all branches

In a series circuit with 3 identical resistors, how does the total resistance compare to the resistance of each individual resistor?

• Total resistance is less than one resistor
• Total resistance is equal to one resistor
• Total resistance is the sum of all resistance
• Total resistance is greater than the sum of all resistances

How does adding more resistors in series affect the total resistance of the circuit?

• Total resistance increases
• Total resistance decreases
• Total resistance stays the same
• It depends on the type of resistors

If one branch of a parallel circuit containing a light bulb is disconnected, what happens to the brightness of the remaining bulbs?

• All the bulbs turn off
• The brightness remains unchanged
• The brightness decreases
• The brightness increases

Which of the following is an advantage of using parallel circuits in home wiring?

• If one appliance fails, others are unaffected
• The total voltage is divided among all devices
• It uses less wiring than a series circuit
• It reduces energy consumption

What happens to the total current in a parallel curcuit when more branches are added?

• The total current decreases
• The total current remains the same
• The total current drops to zero
• The total current increases

In a parallel circuit, how does the total resistance compare to the individual resistances of each branch?

• Total resistance is equal to the largest branch resistance
• Total resistance is less than the smallest branch resistance
• Total resistance is greater than the resistance of any branch
• Total resistance equals the sum of all branch resistances

What is the main reason series circuits are not used in household wiring?

• Series circuits are too complicated to install
• Adding too many devices would cause them all to fail if one stops working
• Voltage is too high in series circuits for home use
• Series circuits consume more energy than parallel circuits