Font size
Worksheetsphysical science
Total questions: 15
Worksheet time: 8mins
Which of the following statements does not represent ohm's law?
current = resistance x potential difference
potential difference = current x resistance.
potential difference / current = constant
current / potential difference = constant
in a parallel circuit the current is divided
true
false
The unit of current is
Ampere
Watt
Volt
Coulomb
Kilowatt - hour is the unit of
Ppotential difference
Electric power
Electrical energy
Charge
The device used for measuring potential difference is known as
Ammeter
Galvanometer
Voltmeter
Potentiometer
An battery is used to
Maintain a potential difference.
Safeguard against short - circuit
Measure electric potential
Measure electric current
Ohm's law relates potential difference with
Energy
Current
Time
Power
Which of the following is an ohmic resistor?
Nichrome
Diode
Diamond
Germanium
The unit of resistivity is
Ohm
Mho
Ohm-m
Ohm / m
The resistance of an electric bulb drawing 1.2 A current at 6.0 V is
0 .5 W
5 W
0.2 W
2 W
This is the unit of measurement that for measuring electrical pressure or EMF?
Switch
Volt
Ampere
Electrode
What is electrical current?
The potential difference between two points in an electric circuit
The rate at which electrical energy is transferred
The flow of electric charge
All of the above
None of the Above
What letter is used to represent current in an electrical diagram or formula?
C
e
V
P
I
What do we call current that only flows in one direction?
AC current
DC current
What do we call current that constantly changes direction?
AC current
DC current
