ECAT Pre Engineering Physics Chapter 12 MCQ Test With Answer

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ECAT Physics Chapter 12 Important MCQ's

Sr.#	Question	Answer
1	The potential difference across the conductors should be maintained constant by connecting the ends of wire to the terminal of a device called a source of	A. power B. current C. resistance D. temperature
2	Electric flux is defined by the relation	A. E.A. B. E x A C. E/A D. none of these
3	A cube of metal is given a positive charge Q. For the above system, which of the following statements is true?	A. Electric potential at the surface of the cube is zero B. Electric potential within the cube is zero C. Electric filed is normal to the surface of the cube D. Electric filed varies within the cube
4	Taking the earth to be a spherical conductor of diameter 12.8 x 10³km. Its capacity will be	A. 711μF B. 611μF C. 811μF D. 511μF
5	The SI unit of electric flux is	A. Weber B. Nm²C^-1 C. NmC^-1 D. Nm^-2C
6	The electrode connected with the positive terminal of the current source is called	A. cathode B. anode C. electrolyte D. position
7	The SI unit of capacitance is	A. Farad B. Henry C. Ohm D. Volt
8	A charge of 0.1 c accelerated through a potential difference of 1000V acquires kinetic energy	A. 200 J B. 100 J C. 1000 J D. 400 J
9	If the two charges in Coulomb's law have double distance between them, then electric force	A. Becomes two-fold B. Becomes four-fold C. Remains the same D. None of these
10	The unit of resistivity is	A. ohm B. ohm-m² C. ohm-meter D. ohm-m^-1

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ECAT Pre Engineering Physics Chapter 12 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 12 Electrostatics

Physics ECAT Pre Engineering Chapter 12 Electrostatics

If one volt is needed to cause a current of one ampere to flow in a conductor, its resistance is

The dot product of electric field intensity E and vector area A is called

The charge per unit time through any cross-section of a conductor is called

The conventional current in a circuit is defined as " current which passes from a point at higher potential to a point at lower potential as if it represent a movement of

Force acting upon a charged particle kept between the plates of a charged condenser if F. IF one of the plates of the condenser is removed, force acting on the same will become

If two bulbs one of 60 W and other of 100 W are connected in parallel, then which one of the following will flow more?

When a dielectric material is introduced between the plates of a charged condenser the electric field between the plates

A heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed?

A cube of metal is given a positive charge Q. For the above system, which of the following statements is true?

Free electrons are

Current provided by a battery is maximum when

The colour sequence in a carbon resistor in red, brown, orange and silver. The resistance of the resistor is

The ratio of the gravitational force Fgto the electrostatic force Febetween two electrons at the same distance apart is approximately

Physicist George Simon ohm was a

In bringing an electron towards another electron, electrostatic potential energy of system

Three resistance 500,500 and 50 ohms are connected in series across 555 volts mains. The current flowing through them will be

The resistance of the given conductor can be increased by

A point charge Q is placed at the mid-point of a line joining two charges. 4q and q. if the net force on charge q is zero. then Q must be equal to

Thermocouple is an arrangement of two different metals

The fractional change in resistance per kelvin is known as

If electric and gravitational force on an electron in a uniform electric field will be

The unit of conductance is

A capacitor of capacity 1μF is charged to 1 KV. The energy stored in J

The relation between charge 'Q' and current 'I' is given by

In RC series circuit the time during which the capacitor acquires 0.63 times the equilibrium charge is called

The relation V = IR represents

Surface density of charge is defined as

If the distance of separation between two chares is increased, the electrical potential energy of the system will

Magnetic effect at a point caused due to flow a current depend upon the

Which of the following represents an electric current?

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ECAT Physics Chapter 12 Important MCQ's

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The ratio of the gravitational force F_gto the electrostatic force F_ebetween two electrons at the same distance apart is approximately