Resistors

What figure represents a red band in a resistor?

• 0

• 1

• 2

• 3

What colour matches with the tolerance of 10%?

• Gold

• Silver

How many bands are on a resistor?

• 1

• 2

• 3

• 4

What does the fourth band code for on a resistor?

• Fourth band

• Tolerance band

• Current capacity band

How do you find the total resistance in a series circuit

• Rtotal = 1/R1 + 1/R2 + ... 1/Rn

• Rtotal = R1 + R2 + ... Rn

• Rtotal = 1 / (1/R1 + 1/R2 + ... 1/Rn)

Which is the correct formula?

• R = P x V

• R = V x I

• R = V/I

• R = I/V

What is resistance measured in?

• Volts

• Amps

• Watts

• Ohms

What is the unit of resistance?

• V

• Ω

• A

• Wh

What is a resistor?

• An electrical component that is used to control the flow of electrical current in a circuit.

• An electrical component that controls the amount of voltage flowing in a circuit,

• An electrical component which stores charge in its two opposite ends.

• An electrical component which detects any form of change within a circuit.