More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
ECAT Physics Chapter 12 Electrostatics Online Test MCQs With Answers
Question # 1
The relation between charge 'Q' and current 'I' is given by
Choose an answer
Q = I/t
Q = It
Q = I
2
t
Q = I
2
/t
Previous
Skip
Next
Question # 2
The resistance of the given conductor can be increased by
Choose an answer
Increasing the area
Changing resistivity
Decreasing the length
None of the above because change does not matter because in any case the volume remains the same
Previous
Skip
Next
Question # 3
The SI unit of current is
Choose an answer
watt
coulomb
volt
ampere
Previous
Skip
Next
Question # 4
A heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed?
Choose an answer
200 W
302.5
250 W
350 W
Previous
Skip
Next
Question # 5
A hollow insulated conduction sphere is given a positive charge of 10
μ
C. What will be the electric field at the centre of the sphere if its radius is 2 meters?
Choose an answer
Zero
5
μ
C m
-2
20
μ
C m
-2
8
μ
C m
-2
Previous
Skip
Next
Question # 6
Electron volt is the unit of.
Choose an answer
Potential difference
Energy
Resistance
Capacitance
Previous
Skip
Next
Question # 7
Two conductors having the same type of charges are connected by a conducting wire. There would not be any amount of charges on them if
Choose an answer
They have the same potential
They have the same amount of charge
They have the same capacity
They have the same shape
Previous
Skip
Next
Question # 8
The resistance of an incandescent lamp is
Choose an answer
Smaller when switched on
Greater when switched off
The same whether it is switch off or switch on
Greater when switched on
Previous
Skip
Next
Question # 9
A cube of metal is given a positive charge Q. For the above system, which of the following statements is true?
Choose an answer
Electric potential at the surface of the cube is zero
Electric potential within the cube is zero
Electric filed is normal to the surface of the cube
Electric filed varies within the cube
Previous
Skip
Next
Question # 10
The unit of resistivity is
Choose an answer
ohm
ohm-m
2
ohm-meter
ohm-m
-1
Previous
Skip
Next
Question # 11
Solar cell converts sunlight directly into
Choose an answer
potential energy
thermal energy
mechanical energy
electrical energy
Previous
Skip
Next
Question # 12
Ohm's law states that
Choose an answer
The current through a resistor is directly proportional to the applied voltage
The voltage across a resistor is directly proportional to the current passing through it
Resistance is the constant of proportionality between the voltage and current
all of these
Previous
Skip
Next
Question # 13
Ohm established a relation between
Choose an answer
voltage and resistance
voltage and charge
voltage and current
voltage resistance and charge
Previous
Skip
Next
Question # 14
Some charge is being given to a conductor. Then its potential
Choose an answer
Is maximum at surface
Is maximum at centre
Is remain same throughout the conductor
Is maximum somewhere between surface and centre
Previous
Skip
Next
Question # 15
The SI unit of electric field intensity is
Choose an answer
CN
-1
NC
-1
or Vm
-1
JC
-1
AV
-1
Previous
Skip
Next
Question # 16
In a charged capacitor the energy is stored in
Choose an answer
Both in positive and negative charges
Positive charges
The edges of the capacitor plates
The electric field between the plates
Previous
Skip
Next
Back