Basic Voltage, Current, Resistor (Week 2, 1st quiz)

1.3 The unit of current is:

• coulomb

• ampere

• volt

• joule

Voltage is measured in

• watts

• amperes

• volts

• joules per second

1.3 The voltage 2,000,000 V can be expressed in powers of 10 as:

• 2 mV

• 2 kV

• 2 MV

• 2 GV

1.1 The prefix micro stands for:

• 10⁶

• 10³

• 10^—3

• 10^—6

A charge of 2 C flowing past a given point each second is a current of 2 A.

• True

• False

A 4-A current charging a dielectric material will accumulate a charge of 24 C after 6 s.

• True

• False

One millivolt is one millionth of a volt.

• True

• False

Which of these is not an electrical quantity?

• charge

• voltage

• current

• time

A current of 3.2 A flows through a conductor. Calculate how much charge passes through any cross-section of the conductor in 20 s

• 84

• 79

• 64

• 55

What 'flows' in a wire?

• Protons
• Neutrons
• Atoms
• Electrons