EE2201 Session 4 : Multiple Choice

In a series circuit, the total resistance is equal to the __________ of the individual resistances.

In a parallel circuit, the total current is equal to the __________ of the currents through each branch.

How can you connect four 2V batteries to meet the 8V requirement of your device?

• Connect them in series

• Connect them in parallel

• Use only two batteries

• No connection possible

What should be the resistance value of the second resistor in the series to create a total current of 0.5 A using a 9V battery and a 6kΩ resistor?

• 3kΩ

• 6kΩ

• 9kΩ

• 12kΩ

How many 1kΩ resistors do you need to connect in parallel to achieve a current of 18mA for an LED with a 9V battery?

• 2

• 3

• 4

• 5

How can you connect 500Ω resistors to achieve a total resistance of 1.5kΩ?

• three in series

• three in parallel

• two in series

• four in series

How can you use two 9V 1A power supplies to meet the 9V 2A requirement of a device?

• Connect them in series

• Connect them in parallel

• Use only one power supply

• Use a current amplifier

If you have a 12V battery and a 4kΩ resistor in series, what is the current flowing through the circuit?

• 3mA

• 6mA

• 9mA

• 12mA

What resistor value do you need to add in series to drop the voltage from 9V to 5V for a microcontroller drawing 50mA?

• 80

• 100

• 120

• 150

How can you combine a 5V voltage source and a 10mA current source to power a circuit requiring 5V and 10mA?

• Connect the voltage source in series with the current source

• Connect the voltage source in parallel with the current source

• Use only the voltage source

• Use only the current source