WorksheetsCurrent electricity
Total questions: 15
Worksheet time: 10mins
True or False: Conductors allow electrons to pass through easily.
True
False
What is an electric current?
a build up of electrons
the difference in charge between 2 points
the flow of electrons over a circuit
the opposition to flow of electrons
The opposition to electron movement
Voltage
Static electricity
current
Resistance
Electrons move towards the point of ________________ potential.
higher
lower
Electric potential is measured in _________.
volts
amps
friciton
------ is called the increase in resistance per unit original resistance per degree kelvin rise of temperature
Thermal velocity
temperature coefficient of electrical resistivity
temperature coefficient of electrical resistance
conducance
20. The resistivity of alloy manganin is
(a) Nearly independent of temperature
(b) Increases rapidly with increase in temperature
(c) Decreases with increase in temperature
(d) Increases rapidly with decrease in temperature
106 electrons are moving through a wire per second, the current developed is
a) 1.6 x 10-19A
b) 1 A
c) 1 .6 X 10-13 A
d) 106 A
