Electricity and Electromagnetism Quiz

Electric current is described as a flow of:

Which one of the following identifies the sources of an electromotive force?

When the current passing through a conductor is increased, the conductor’s temperature will:

The SI unit Henry is used for:

Ohm is the SI unit of measurement for:

The SI unit for frequency is the:

Resistance, potential difference and electrical current are expressed in the same order as units of:

Transpose the formula Z2 = R2 + X2 to make R2 the subject.

If the resistivity of aluminium is 2.65 x 10-8 Ω/metre, the resistance of a 65 metre length of 16mm2 aluminium conductor is:

A conductor of a simple alternator is 0.4m long and cuts a magnetic field with a magnetic flux density of 1.5 tesla at a velocity of 30m/s. The EMF induced in the conductor will be: