ECAT Pre Engineering Physics Chapter 13 MCQ Test With Answer

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Sr.#	Question	Answer
1	The free electrons in metals:	A. Are in random motion and their speed depends upon temperature B. Move in particular direction C. Move with speed of light D. Move such that their speed does not depend on their temperature
2	The electric flux through any surface depends upon:	A. Intensity of electric field B. Area of the surface C. Angle between intensity and area D. All of these
3	If the ends of a wire are connected to a battery an electric field E will be set up at:	A. The ends of the wire only B. Mid points of the wire only C. Every point within the wire D. At nodes only
4	The flux through a closed surface depends upon:	A. Shape of geometry of the closed surface B. Charge enclosed C. Nature of the medium D. Both (A) and (B)
5	Thermistors are prepared under	A. High pressure and low temperature B. High pressure and high temperature C. Low pressure and low temperature D. Low pressure and high temprature
6	The current of 1 ampere is passing through a conductor. The charge passing through it in half a minute is:	A. One coulomb B. 0.5 coulomb C. 30 coulomb D. 2 coulombs
7	In a metal, the valence electrons are:	A. Attach to individual atoms B. Not attached to individual atoms C. Free to move within the metal D. Both (A) and (C)
8	In case of metallic conductors, the charge carriers are	A. Protons B. Electrons C. Antiprotons D. Positrons
9	Electrostatics is the branch of physics which deals with the study of electro charges:	A. At rest B. At rest under the action of electric forces C. In motion under the action of electric forces D. In motion
10	Which instrument is expensive and difficult to use?	A. Voltmeter B. Potentiometer C. CRO D. Both A and C

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ECAT Pre Engineering Physics Chapter 13 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 13 Current Electricity

Physics ECAT Pre Engineering Chapter 13 Current Electricity

The effects of bends in a wire on its electrical resistance are:

Electrolysis is the study of conduction of electricity through:

In order to have a constant current through wire, the potential difference across its end should:

The value of resistivity is the least for:

The strength of magnetic field at certain points around a wire depends upon:

The fourth band is a:

In gases, the charge carriers are:

The obvious effect/s of current is/are:

Most practical applications of electricity involve

Xerography means:

When certain area A is held parallel to the field lines, then:

While finding the electric intensity at a point between two oppositely charged parallel plates, the Gaussian surface is taken in the form of a hollow:

The flux through a closed surface depends upon:

When two spherical conducting balls at different potentials are joined by a metallic wire, after some time:

An important part of photocopier is:

The surface destiny of charge is defined is:

The current of 1 ampere is passing through a conductor. The charge passing through it in half a minute is:

Certain charge +q is placed at the center of a sphere. At each of the sphere,The directions of electric intensity and vector area are:

Thermistors are prepared under

The rate at which the free electrons pass through any section of a metallic wire from right to left is:

As the current flow through the wire:

When a constant potential difference is applied across the conductor, the drift velocity of electrons:

The number of field lines passing through unit area held perpendicular to the field lines represent:

In case of two identical charges placed certain distance apart, the electric field lines are:

When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:

An electric field is generated along the wire when:

In gases, the charge carries are:

Magnetic effect of current is used:

The electric flux through any surface depends upon:

The conventional current is the name given to current due to flow of:

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