Electric Circuits

The flow of electrical charge per unit time is known as...?

• Voltage

• Current

• Resistance

• Power

The following image respresents a

• LED

• Series circuit

• Parallel circuit

• Resistor

The following image respresents a

• LED

• Series circuit

• Parallel circuit

• Resistor

In a series circuit, the current...

• is different for each resistor

• is equal to zero

• is the same for each resistor

• is equal to the power

In a parallel circuit, the voltage...

• is different for each resistor

• is the same for each resistor

• is equal to the sum of each voltage

• is equal to zero

If R1= 20 Ω and R2=50 Ω, calculate the total resistance of the circuit.

• 70 Ω

• 30 Ω

• 14.28 Ω

• 23.4 Ω

Calculate the total resistance of the circuit.

• 9.23 Ω

• 90 Ω

• 60 Ω

• 70 Ω

The difference in electric potential between two points is also called...

• Current

• Voltage

• Resistance

• Power

As resistance increases, the current will...?

• increase

• decrease

• not changed

• stops

Electric charge is measured in...?

• Volts (V)

• Amperes (A)

• Coulombs (C)

• Joules (J)