Electrical Engineering Quiz

The curve representing Ohm's law is

• a parabola

• linear

• a sine function

• a hyperbola

Heating effect of current has an undesirable side effect in

• electric oven

• immersion heater

• electric iron

• vacuum cleaner

Two wires made of the same material have the same lengths but different diameters. They are connected in SERIES to a battery. Which of the following quantity is the same for the two wires?

• current

• current density

• voltage

• end-to-end potential difference

Which of the following characteristic of the plates of the battery will the Ampere-Hour of the battery depends on?

• distance

• area

• strength

• thickness

What is the counterpart of magnetic flux in an electric circuit?

• voltage

• current

• resistance

• conductance

The law that induces emf and current always opposes the cause producing them was discovered by

• Faraday

• Maxwell

• Lenz

• Ohm

The tesla is a unit of

• inductance

• magnetic flux density

• capacitance

• permittivity

What extends the range of a dc ammeter?

• inductance

• capacitor

• current transformer

• shunt resistance

To increase the range of a dc voltmeter, a __________.

• low resistance is connected in series

• high resistance is connected in series

• low resistance is connected in parallel

• high resistance is connected in parallel

When the sole purpose of ac is to produce heat, the selection of conductor is based on __________ value of the current.

• Average

• Instantaneous

• RMS

• Peak