Series circuit & parallel circuit

Choose the correct formulae for series circuit

• Current, I= I₁ = I₂

• Current, I = I₁ + I₂

• Voltage, V = V₁+ V₂

• Voltage, V= V₁ = V₂

Given in this diagram, the voltage is 6.0V and each bulb represents 1.5 ohm, what is the current?

• 1.33A

• 1.5A

• 1.75A

• 2.0A

Given in the diagram the voltage is 6 V. If the middle bulb is not functioning, calculate the current if the resistance is 2 ohm.

• 3A

• 4A

• 5A

• 6A

Choose the advantages of series circuit

• Every component in the circuit receives the same amount of current.

• When one of the electrical appliances is damaged, other appliances cease to function.

• Every component is controlled by the same switch.

• Increase in voltage supplies more electric current.

Choose the disadvantage of parallel circuit

• Every electrical appliances can be switched on or off saparately.

• The voltage for every electrical appliance cannot be adjusted because the voltage is the same.

• The increase in the number of electrical appliances does not affect the function of other appliances.

The example of parallel circuit is

• parking lot.

• Wiring system in our house

• Street light

• Classroom