WorksheetsUnit test - 1
Total questions: 23
Worksheet time: 49mins
Dimensions of kinetic energy are the same as that of ______
force
acceleration
work
pressure
A physical quantity may be defined as
the one having dimension
that which is immeasurable
that which has weight
that which has mass
Which of the following is NOT a fundamental quantity?
Temperature
Electric charge
Mass
Electric current
Light year is a unit of ________
time
mass
distance
luminosity
3.310×102 has _________ significant figures.
6
4
2
1
Accuracy of measurement is determined by
absolute error
percentage error
human error
personal error
[L1M1T−2] is the dimensional formula for
velocity
acceleration
force
work
0.00849 contains _________ significant figures.
6
5
3
2
An electron is placed between two parallel plates connected to a battery. If the battery is switched on, the electron will_______
be attracted to the +ve plate
be attracted to the -ve plate
remain stationary
will move parallel to the plates
Which of the following produces a uniform electric field?
point charge
linear charge
two parallel plates
charge distributed on circular disc
The region around a charged object in which coulomb
force is experienced by another charge is called _________.
Magnetic Field
Electrostatics
Electric field
SI unit of electric intensity is ____________.
watt per Sec
newton per coulomb
newton per sec
watt per sec2
when a number of charges are interacting, the resultant force on a particular charge is given by the vector sum of the forces exerted by individual charges is called ______
Gauss's Law
Columb's Law
Principle of Superposition
Conservation of Charge
The force of attraction or repulsion between two point charges at rest is directly proportional to the product of
the magnitude of the charges and inversely proportional to the square of the distance between them is called __________ .
Coulomb’s Law
Gauss's Law
Conservation of Charges
Principle of Superposition
If a charge is moved against the Columb force of an electric field, ________
work is done by the electric field
energy is used from some outside source
the strength of the field is decreased
the energy of the system is decreased
If two lines of force intersect at one point, it means ____
lines of force due to similar charge
The electric field has two directions at a single point
nature of the electric field is dual
The S.I unit of emf of cell is _____
V/m
V/C
J/C
C/J
A rheostat is used ______
to bring on a known change of
resistance in the circuit to alter the current
to continuously change the resistance
in any arbitrary manner and thereby alter
the current
to make and break the circuit at any
instant
neither to alter the resistance nor the
current
The internal resistance of a cell of emf 2V is 0.1Ω it is connected to the resistance of 0.9Ω. The voltage across the cell will be
0.5 V
1.8 V
1.95V
3V
Five dry cells each of voltage 1.5 are connected as shown in the diagram :
What is the overall voltage with this
arrangement?
0 V
4.5 V
6.0 V
7.5 V
The terminal voltage of a cell of emf E on short-circuiting will be
E
E/2
2E
zero
In series combination of cells , effective internal resistance will _____
remain the same
decrease
increase
be half that of the 1st cell
Three resistors , 8 Ω ,
4Ω and 10Ω connected in parallel as shown in figure , the equivalent resistant is ______4019Ω
1940Ω
1980Ω
2334Ω
