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 resistance of the given conductor can be increased by	A. Increasing the area B. Changing resistivity C. Decreasing the length D. None of the above because change does not matter because in any case the volume remains the same
2	The thermistors are usually made of	A. Metals with low temperature coefficient of resistivity B. Metals with high temperature coefficient of resistivity C. Metal oxides with high temperature coefficient of resistivity D. Semi conducting materials having low temperature coefficient of resistivity
3	The potential difference across each resistance in series combination is	A. same B. different C. zero D. none of these
4	Magnetic effect at a point caused due to flow a current depend upon the	A. Quantity of current B. Distance from current C. Both the quantity of current and distance from current element D. None of the all
5	Resistor is a device which convert electric energy to	A. Heat energy B. Chemical energy C. Elastic energy D. All of the above
6	If the resistance of 2 ohm and 4 ohm are connected in parallel, the equivalent resistance will be	A. 6 ohm B. 4 ohm C. zero ohm D. 1.33 ohm
7	The graphical representation of ohm's law is	A. hyperbola B. straight line C. ellipse D. parabola
8	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
9	Which one of the following has larger value of relative permitivity E_rat room temperature?	A. Vaccum B. Air C. Glass D. Water
10	The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10^-15is	A. 9 x 10⁵V B. 9 V C. 8 x 10⁶V D. 80 V

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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 electric field will be uniform

The graphical representation of ohm's law is

The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10-15 is

The electric field due to an infinite long thin wire at a distance R varies as

If a 40 watt light bulb burns for 2 hours. how much heat is generated

The SI unit of electric field intensity is

The resistivity of a substance depends upon the

The electric intensity at infinite distance from the point charge will be

Two point charge +3μC and +8μC repel each other with a force of 40 N. If a charge of -5μC is added to each of them, then the force between then will become

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

The unit of intensity of electric field is

Physicist George Simon ohm was a

Free electrons are

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

Cause of heat production in a current carrying conductor is

The charge carriers in gases are

The ohm's is defined as

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

The electrode connected with the positive terminal of the current source is called

The substances whose resistance decreases with the increase in temperature these substances have coefficient of

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

Battery is charged in motor cars, which is based on

Surface density of charge is defined as

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

A current of 1.6 A is passed through a solution of CuSO4. How many Cu2+ions are liberated in one minute?

A 50 volt battery is connected across 10 ohm resistor. The current is 4.5 A. The internal resistance of the battery is

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)

The unit of resistivity is

The force between two chares 0.06 m apart is 5 N. If each charge is moved towards the other by 0.01 m, then the force between them will become

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ECAT Physics Chapter 12 Important MCQ's

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The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10^-15is

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

A current of 1.6 A is passed through a solution of CuSO_{4. How many Cu}²⁺ions are liberated in one minute?