WorksheetsCurrent Electricity 2
Total questions: 10
Worksheet time: 7mins
Name
Class
Date
1.
Define electric current.
a)
It is the work done by the source in driving charges around a complete circuit.
b)
It is the work done by the source in driving a unit charge around a complete circuit.
c)
It is a measure of the rate of flow of electric charge through a given cross-section of a conductor.
d)
It is a measure of the flow of electric charge through a given cross-section of a conductor.
2.
What is the formula for current?
a)
I = t/Q
b)
I = Q/t
c)
I = W/Q
d)
I = W/t
3.
What does the arrows in the circuit represents?
a)
conventional current
b)
electron flow
c)
eletromotive force
d)
voltage
4.
Define electromotive force.
a)
It is the work done by the source in driving charges around a complete circuit.
b)
It is the work done by the source in driving a unit charge around a complete circuit.
c)
It is a measure of the rate of flow of electric charge through a given cross-section of a conductor.
d)
It is a measure of the flow of electric charge through a given cross-section of a conductor.
5.
What is the formula for potential difference?
a)
V = W/Q
b)
V = Q/W
c)
V = W/t
d)
V = Q/t
6.
What does the voltmeter reading show?
a)
The eletromotive force of the electrical source
b)
The electromotive force of the bulb
c)
The potential difference across the bulb
d)
The potential difference across the electrical source
7.
What is the following component?
a)
fixed resistor
b)
fuse
c)
rheostat
d)
ammeter
8.
Which of the following formula is correct?
a)
R = V/I
b)
R = I/V
c)
R = VI
d)
R = VI2
9.
Determine the resistance of the light bulb.
a)
0.25 Ω
b)
1 Ω
c)
2 Ω
d)
4 Ω
10.
What is the S.I unit for resistance?
a)
ohm
b)
ampere
c)
volt
d)
joules
100 %
