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 electrode connected with the positive terminal of the current source is called	A. cathode B. anode C. electrolyte D. position
2	Ohm is the unit of	A. current B. capacitance C. energy D. resistance
3	The relation between charge 'Q' and current 'I' is given by	A. Q = I/t B. Q = It C. Q = I²t D. Q = I²/t
4	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	A. They have the same potential B. They have the same amount of charge C. They have the same capacity D. They have the same shape
5	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	A. Zero B. F/2 C. F D. 2F
6	Capacitance of two or more capacitors	A. Increases in series combination B. Increases in parallel combination C. Remains unchanged D. None of the above
7	The resistance of a conductor does not depend on its	A. mass B. resistivity C. length D. cross-sectional area
8	Ohm established a relation between	A. voltage and resistance B. voltage and charge C. voltage and current D. voltage resistance and charge
9	The potential difference across each resistance in series combination is	A. same B. different C. zero D. none of these
10	If a 40 watt light bulb burns for 2 hours. how much heat is generated	A. 288 x 10³J B. 288 x 10⁸J C. 288 x 10⁵J D. 288 x 10⁶J

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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

The minimum charge on any object can not be less than

A closed surface contains two equal and opposite charges. The net electric flux from the surface will be

The unit of intensity of electric field is

An alpha particle is accelerated through a potential difference of 106volt. Its kinetic energy will be

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

The energy required to charge a capacitor of 5μF by connecting D.C. source of 20 KV is

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

Which one of the following is the unit of electric field intensity

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)

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

A parallel plate capacitor is first charged and then a dielectric slab is introduced between the plates. The quantity that remains unchanged is

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?

The SI unit of electric flux is

The fractional change in resistance per kelvin is known as

In case of a parallel plate capacitor if the plate separation is doubled and plate area is halved, the capacitance becomes

If 2.2 kilowatt power is transmitted through a 10 ohm line at 22000 volt, the power loss in the form of heat will be

Resistance of a conductor depends upon

If the distance between the plates of a parallel plate condenser of capacity 10μF is doubled then new capacity will be

One coulomb of charge is created by

The graphical representation of ohm's law is

Electric generators which convert mechanical energy into

The ohm's is defined as

Which one of the following has larger value of relative permitivity Erat room temperature?

The capacity of a parallel plat capacitor depends on the

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

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

Potentiometer is more sensitive than voltmeter, because

If the two charges in Coulomb's law have double distance between them, then electric force

Electric flux is defined by the relation

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ECAT Physics Chapter 12 Important MCQ's

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An alpha particle is accelerated through a potential difference of 10⁶volt. Its kinetic energy will be

Which one of the following has larger value of relative permitivity E_rat room temperature?