Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
ECAT Pre Engineering Physics Ch 12 Test
MCQ's Test For Physics ECAT Pre Engineering Chapter 12 Electrostatics Online Test
Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 12 Electrostatics Online Test
-
Total Questions30
-
Time Allowed30
Physics ECAT Pre Engineering Chapter 12 Electrostatics Online Test
00:00
Question # 1
Two point charges A and B separated by a distance R attract each other with a force of 12 x 10-3N. The force between A and B when the charges on them are doubled and distance is halved
Question # 2
The charge carriers in electrolyte are positive and negative
Question # 3
The charge carriers in gases are
Question # 4
A one microfarad capacitor of a TV is subjected to 4000 V potential difference. The energy stored in capacitor is
Question # 5
The thermistors are usually made of
Question # 6
A capacitor of capacity 1μF is charged to 1 KV. The energy stored in J
Question # 7
A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor
Question # 8
The minimum resistance that can be obtained by connecting 5 resistance of 1/4Ωeach is
Question # 9
A wire of radius r has resistance R. If it is stretched to a wire of r/2 radius, then the resistance becomes
Question # 10
The ratio of the gravitational force Fgto the electrostatic force Febetween two electrons at the same distance apart is approximately
Question # 11
The earth's potential is taken as
Question # 12
One coulomb per second is equal to
Question # 13
The SI unit of conductivity is
Question # 14
When three identical bulbs of 60 watt, 200 volt rating are connected in series to a 200 volt supply, the power drawn by them will be
Question # 15
In a building, there are 15 bulbs of 40 watts, 5 bulbs of 100 watts, 5 fans of 80 watts and a heater of 1 kilowatt. The voltage of the electric main is 220 volts. The minimum efficiency of the main fuse of the building will be
Question # 16
The substances whose resistance decreases with the increase in temperature these substances have coefficient of
Question # 17
The dot product of electric field intensity E and vector area A is called
Question # 18
Free electrons are
Question # 19
If a charged spherical conductor of radius 10 cm has potential V at a point distance 5 cm from its centre, then the potential at a point distance 15 cm from the centre will be
Question # 20
If we plot graph between potential difference (V) and current (I) obeying ohm's law, it will give us
Question # 21
The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10-15 is
Question # 22
The unit of intensity of electric field is
Question # 23
In Pakistan electricity is supplied for domestic use at 220 V, it is supplied at 110 V in USA. If the resistance of a 60 W bulb for use in Pakistan is R, the resistance of a 60 W bulb for use in USA will be
Question # 24
A hollow insulated conduction sphere is given a positive charge of 10μC. What will be the electric field at the centre of the sphere if its radius is 2 meters?
Question # 25
Capacitance of two or more capacitors
Question # 26
The SI unit of capacitance is
Question # 27
The relation between the charge Q of a parallel plate capacitor and the P.D between its plates is
Question # 28
If the length of the conductor is double and its cross sectional area is halved, its conductance will
Question # 29
In RC series circuit the time during which the capacitor acquires 0.63 times the equilibrium charge is called
Question # 30
The resistance of the given conductor can be increased by
ECAT Pre Eng. Physics Ch 12 Test
Here you can prepare ECAT Pre Engineering Physics Ch 12 Electrostatics Test. Click the button for 100% free full practice test.
