DC - Resistors

All conductors possess high resistance.

• True

• False

Aluminium has less resistance than copper.

• True

• False

All other factors being the same, the longer the conductor the higher the resistance.

• True

• False

Increasing the temperature of a metal conductor increases its resistance.

• True

• False

There are special resistors that can be affected by light

• True

• False

If the cross sectional area of a conductor is increased, the resistance will be:

• Doubled

• Halved

• Increased

• Decreased

The four factors that determine resistance in a conductor are its length, material, temperature and:

• Height

• Mass

• Volume

• Cross sectional area

What does a gold fourth band on a resistor mean?

• 5% tolerance

• 10% tolerance

• 2% tolerance

What is the resistance and tolerance for a resistor that has the coloured bands of brown, green, red and gold?

• 1500 Ohms ±5%

• 150 Ohms ±2%

• 15 000 Ohms ±10%

• 150 Ohms ±5%

What are the minimum and maximum values of a 270 Ω resistor with a silver fourth band?

• 200 Ω and 300 Ω

• 256 Ω and 296 Ω

• 243 Ω and 297 Ω

• 270 Ω and 270 Ω