EDC - Chapter 3 Resistors Quiz

The colour code of a 4-band resistor is green, blue, orange, gold. What is the value of the resistor?

• 5.6 kΩ ± 5%.

• 6.5 kΩ ± 5%.

• 56 kΩ ± 5%. 

• 65 kΩ ± 5%.

Select the most accurate statement for a parallel circuit as compared to a series circuit. In a parallel circuit,

• the total power is lesser.

• there is more than one path for current flow.

• the total resistance is the sum of individual resistances.

• the source voltage is the sum of the individual voltage drops.

Two resistors of values 150 Ω and 300 Ω are connected in parallel across a 20 V dc supply. Determine the total power dissipated in the circuit.

• 0.89 W.

• 1.33 W.

• 2.67 W.

• 4.00 W.

Calculate the total resistance of the arrangement shown in Fig 1.

• 33 Ω.

• 57 Ω.

• 82 Ω.

• 132 Ω.

Three resistors of values 470 Ω, 560 Ω and 820 Ω are connected in series across a 10 V dc supply source. If the 560 Ω resistor is open-circuited, determine the current flowing in the circuit.

• 0 mA.

• 5.41 mA.

• 7.75 mA.

• 9.71 mA.

Which one of the following is an advantage of a wire-wound resistor?

• Accurate.

• Small in size.

• Low ohmic values.

• Sensitive to Frequency.

Refer to Fig 2. If the voltage drop across R3 is 5 V, determine the value of the supply voltage, Vs.

• 5 V.

• 10 V.

• 15 V.

• 20 V.

A circuit with three resistors connected in parallel has a total resistance of 3 Ω. Two of the resistors are 6 Ω and 12 Ω . Find the value of the third resistor.

• 18 Ω.

• 12 Ω.

• 10 Ω.

• 8 Ω.

Which one of the following is an advantage of a metal film resistor?

• Cheap.

• Easily available.

• Not frequency sensitive. 

• Stable with time and temperature.

The following parameters are factors affecting the resistance of a conductor except its

• length.

• weight.

• material.

• cross sectional area.