physics ch 5

What is the total resistance of a 3-ohm resistor and a 6-ohm resistor in parallel?

2 ohms

What is the total resistance of a 3-ohm resistor and a 6-ohm resistor in series?

9 ohms

In a series circuit, the total voltage drop across a series of resistors is the sum of the voltage drops across each individual resistor

always true

As more lamps are put into a series circuit, the overall current in the power source

decreases

As more lamps are put into a parallel circuit, the overall current in the power source

increases

Compared to a single lamp connected to a battery, two identical lamps connected in series to the same battery will carry

less current

Compared to the resistance of two resistors connected in series, the same two resistors connected in parallel have

less resistance

Compared to a single lamp connected to a battery, two identical lamps connected in parallel to the same battery will carry

more current

When one light bulb in a series circuit containing several light bulbs burns out

none of the other bulbs will light up.

When one light bulb in a parallel circuit containing several light bulbs burns out

nothing changes in the rest of the circuit

In an electric circuit, the safety fuse is connected to the circuit in

series

In a parallel circuit, the current in each branch is the same

sometimes true

Light bulbs connected in series all carry the same current, regardless of their resistances

true