Electrical and Electronics Quiz

Which of the following is in the correct order of decreasing size?

• nano, micro, kilo

• mega, kilo, micro

• nano, kilo, giga

• milli, kilo, giga

What is the potential difference in an electrical circuit a measure of?

• The voltage at a specific location in the circuit

• The load at a specific location in the circuit

• The resistance at a specific location in the circuit

• The current at a specific location in the circuit

Using a fuse with a current rating higher than that required by a circuit:

• Makes the circuit less safe

• Is required

• Is recommended

• Has no impact on the safety of the circuit

You would measure the amount of voltage between two points in a circuit with a/an:

• Battery

• Thermometer

• Ohmmeter

• Voltmeter

A rectifier:

• Converts AC current to DC current

• Converts a parallel circuit to a series circuit

• Is another name for a variable resistor

• Is used to multiply the voltage in a circuit

What is the frequency of most household electrical systems?

• 60MHz

• 60V

• 60Hz

• 220V

How would you connect 8 [9V 5A] batteries to achieve a combined power output of 9V 40A?

• Series-parallel

• Series

• Parallel

• Parallel-series

In a closed electrical circuit current flows from:

• From high to low resistance

• From positive to negative potentials

• From negative to positive potentials

• From high to low amps

Which of the following is not an advantage of semiconductors over conductors?

• A semiconductor exhibits increased conductivity with increased temperatures

• A semiconductor's conductivity can be varied under an external electrical field

• A semiconductor conducts current better than a conductor

• Materials to produce semiconductors are cheap and abundant

Which of the following is not true about a line drop?

• It's caused due to resistance

• It's a decrease in voltage between two points on a line

• It's addressed by raising voltage and lowering current across the transmission line

• It's addressed by raising current and lowering voltage across the transmission line