3.1.2 and 3.1.3 Review (goes with paper)

A circuit is constructed with a 4.5 V power supply and a light bulb. The current is measured to be 93.7 mA. What is the resistance of the circuit?

• .048 Ohms

• 48 Ohms

• 20.8 Ohms

• .021 Ohms

The current across a 200 kΩ resistor is measured to be 15 µA. What is the voltage?

• 1.5 V

• 300 V

• 3000 V

• 3 V

What is the total voltage?

• 12 V

• 3.5 V

• 6 V

• 6 mA

What is the total current?

• 12 mA

• 6 mA

• 6 A

• 3.5 A

What is the voltage drop across R3?

• 2.5 V

• 12 V

• 6 V

• 3.5 V

What is the current flow across R1, R2 and R3?

• I1 = 3.5 mA, I2 = 2.5 mA, I3 = 6 mA

• All are 3.5 mA

• All are 6 mA

• All are 12 mA

Using Ohm’s law, calculate the resistance of R1.

• 416.7 Ohms

• 583.3 Ohms

• .583 Ohms

• 23 Ohms

Using Ohm’s law, calculate the resistance of R2.

• 416.7 Ohms

• 583.3 Ohms

• .583 Ohms

• 23 Ohms

Using Ohm’s law, calculate the resistance of R3.

• 416.7 Ohms

• 583.3 Ohms

• 1000 Ohms

• 23 Ohms

Using Ohm’s law, calculate the total resistance of the circuit.

• 2 Ohms

• 2000 Ohms

• 1000 Ohms

• 500 Ohms