L2 Elec science T1

Which numeric sequence is in the correct ascending order?

• Nano, Pico, Micro, Milli

• Milli, Micro, Kilo, Mega

• Terra, Giga, Mega, Kilo

• Kilo, Mega, Tera, Giga

What variation of the formula V = I x R is used to determine current?

• I = R / V

• I = V / R

• I = V x R

• I = R x V

What is the value of the side marked X in the image shown?

• 16cm

• 14cm

• 12cm

• 10cm

What is the volume of a room that measures 2M wide, 3M in length and has a ceiling 4M high?

• 7Mᶟ

• 12Mᶟ

• 20Mᶟ

• 24Mᶟ

Which atomic element is measured in coulombs?

• Proton

• Neutron

• Electron

• Centeron

Which material is a conductor?

• PVC

• Glass

• Mica

• Carbon

Why is copper commonly used in the construction of cables?

• It has a low resistivity which makes it a good insulator

• It has a high resistivity which makes it a good insulator

• It has a low resistivity which makes it a good conductor

• It has a low resistivity which makes it a good insulator

What is the total resistance is three resistors are connected in series and each have a value of 10 ohms?

• 3.3

• 10

• 30

• 100

What is the total resistance of the circuit shown in the image?

• 5

• 10

• 20

• 80

Which of the following statements are true?

• The total resistance of a circuit wired in series is lower than the smallest resistor

• The total resistance of a circuit wired in series is higher than the largest resistor

• The total resistance of a circuit wired in parallel is lower than the smallest resistor

• The total resistance of a circuit wired in parallel is higher than the largest resistor