Module B2-5a Revision

When numerical aperture increases, what happens to bandwidth?

• Increases

• Decreases

• Stays same

Which component is put at the beginning of a fibre run to turn digital signals into light, acting as the transmitter?

• LEDs / Laser Diodes

• Halogen Lamps

• Zenon Gas Tube

Which optical fibre has the higher bandwidth?

• Single Mode

• Multi-Mode

• Positive Mode

A1₁₆ is equivalent to what number in decimal?

• 17

• 81

• 161

• 11

0100 1011₂ is which number in decimal

• 140

• 64

• 75

• 33

Which number system displays binary information in a more intuitive way for users to interpret more efficiently?

• Decimal

• Binary Coded Hex

• Binary Coded Decimal

Convert 110 010₂ to octal

• 62₈

• 62₁₀

• 32₈

• 32₁₆

You have been tasked with modifying this circuit to accommodate another input bit, however, the resistor representing the current MSB value has to stay the same. What resistor will you need?

• 40 Ohms

• 1.25 k Ohms

• 40000 Ohms

• 125 Ohms

0001 is the input and each pin is supplied 5V for a high, 0V for a low. What is the voltage across R4?

• 1V

• 5V

• 12V

• 0V

Temperature variations have little effect on this type of DAC:

• Digital Ramp

• R/2R Ladder

• Binary Weighted Resistor

• Flash