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Physics ECAT Pre Engineering Chapter 12 Electrostatics Online Test
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Total Questions30
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Time Allowed30
Physics ECAT Pre Engineering Chapter 12 Electrostatics Online Test
A 10 F capacitor is charged to a potential difference of 50 V and is connected to another uncharged capacitor in parallel. Now the common potential difference becomes 20 volt.The capacitance of second capacitor is
Which of the following does not obey ohm's law?
The SI unit of current is
Three resistance 500,500 and 50 ohms are connected in series across 555 volts mains. The current flowing through them will be
Heating effect caused by an electric circuit is written
The colour sequence in a carbon resistor in red, brown, orange and silver. The resistance of the resistor is
In a voltmeter the conduction takes place due to
A capacitor of capacity 1μF is charged to 1 KV. The energy stored in J
Potentiometer is more sensitive than voltmeter, because
A medium of dielectric constant 'K' is introduced between the plates of parallel plate condenser. As a result its capcitance
The statement "the electric force of repulsion or attraction between two point charges is directly proportional to the product of the charges and inversely proportional to square of the distance between them" refer to
If the length of the conductor is double and its cross sectional area is halved, its conductance will
A piece of fuse wire melts when a current of 15 ampere flows through it. With this current. If it dissipates 22.5 W, the resistance of fuse wire will be
The electric lines of force are
A point charge A of charge +4μC and another B of charge -1μC are placed in air at a distance 1 m apart. Then the distance of the point on the line joining the charge B, where the resultant electric field is zero, is (in m)
Magnetic effect at a point caused due to flow a current depend upon the
Ohm established a relation between
A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1 KV, its kinetic energy will be
At ordinary temperature, an increase in temperature increases the conductivity of
The value of electrical constant of proportionality k is
Electron volt is the unit of.
The charge carriers in gases are
The conductivity of a superconductor is
A wire is bent into a ring of radius R is given a charge q. The magnitude of the electrical field at the centre of the ring is
If we increase the distance between two plates of the capacitor, the capacitance will
In a charged capacitor the energy is stored in
When an electron is accelerated through a P.D. of an one volt, it will acquire energy equal to
A conducting wire is drawn to double its length. Final resistivity of the material will be
Capacitance of two or more capacitors
An electric dipole is at the centre of a hollow sphere of radius r. The total normal electric flux through the sphere is (here Q is the charge and d is the distance between the two charges of the dipole)
Matric Part 2/10th Class English Chapter 1 MCQ Test With Answer for Chapter 1 Hazrat Muhammad (S.A.W) an Embodiment of Justice
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Biology Chapter 1 - Answers Mode
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Biology Chapter 1 MCQ - PDF
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Download PDF with answers to study online or offline. The PDF cotnains all MCQ questions with answers for Class 10 Biology Chapter 1 - Acids and Liquids. Total questions are 12.
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