Lesson 6: Series and Parallel Circuits

The diagram shows a segment of a circuit. What is the current in the 200 ohms resistor?

• 0.5 A

• 1.0 A

• 1.5 A

• 2.0 A

In this circuit, three resistors receive the same amount of current (4 amps) from a single source. Calculate the amount of voltage “dropped” by each resistor, as well as the amount of power dissipated by each resistor:

• 1 A

• 2 A

• 3 A

• cannot be determined

There is a current of 1.0 A in the given circuit. What is the resistance of the unknown resistor?

• 3.5 ohms

• 3.0 ohms

• cannot be determined

• 9 ohms

What is the current in from point A to B or first branch in the parallel circuit?

• 2 A

• 2. 1.5 A

• 2.5 A

• 2. 5 A

Which is the correct circuit  diagram for the circuit shown?

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