ECAT Pre General Science Chapter 13 online mcq test with answers for Physics chapter 13 (Current Electricity)

Top Scorers Of ECAT Pre General Science Physics Chapter 13 Current Electricity MCQ`s Test

A

Amal Kashif 04 - Jun - 2022 06 Min 54 Sec 75/120
W

Waleed Ahmed 25 - Feb - 2023 14 Min 08 Sec 65/120
B

Bint e Nasim 13 - Jun - 2021 23 Min 08 Sec 55/120
U

Unknown 27 - May - 2024 12 Min 24 Sec 45/120
Z

Zubair Khan 12 - Mar - 2023 00 Min 17 Sec 0/120

Sr.#	Question	Answer
1	In order to have a constant current through wire, the potential difference across its end should:	A. Be zero B. Be maintained constant C. Goes on increasing D. Go on decreasing
2	An important part of inkjet printer is:	A. Toner B. Drum C. Deflection plates D. Heated roles
3	Most practical application of electricity involve	A. Charges at the rest B. Charges in the motion C. Electrons at rest D. Atoms in motion
4	The fourth band is a:	A. Silver band B. Red band C. Gold band D. Either A or C
5	An inkjet printer uses in its operation:	A. Neutrons only B. Mesons only C. Positrons and photons D. An electric charge
6	Xerography means:	A. Dry writing B. Wet writing C. Poor writing D. Excellent writing
7	The example/s of non-electrical energy to electrical is/are:	A. Chemical energy B. Mechanical energy C. Heat energy D. Both (A) and (B)
8	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)
9	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)
10	An eV is unit of:	A. Potential B. Energy C. Work D. Power
11	The value of resistivity is the least for:	A. Copper B. Aluminimum C. Silver D. Tungsten
12	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
13	Which of the following substances has got positive temperature coefficient of resistance?	A. Carbon B. Germanium C. Silicon D. Aluminium
14	The current that flows through the coil of a motor causes:	A. Its shaft to revolve B. Its brushes to rotate C. Motor to move D. Its shafts to rotate
15	The conventional current is the name given to current due to flow of	A. Positrons B. Positive charges C. Negative charges D. Both A and C
16	Tick the correct statement:	A. Both the potential and potential difference is scalars B. Potential is a scalar but potential difference is a vector C. Both are vectors D. Potential is vector but potential difference is scalar
17	When certain area A is held parallel to the field lines, then:	A. No lines cross this area B. Maximum lines pass through this area C. The number of lines are between zero and maximum D. Both (A) and (B) correct
18	A current of 1 ampere is passing through a conductor. The charge passing through it in half a minute s	A. One coulomb B. 0.5 coulomb C. 30 coulombs D. 2 coulombs
19	In case of two identical charges placed certain distance apart, the electric field lines are:	A. Straight lines B. Sine curves C. Curved D. Both (A) and (B)
20	Conversion of chemical energy to electrical energy can be achieved by:	A. Primary cell B. Secondary cell C. Both (A) and (B) D. Photovoltaic cell
21	In gases, the charge carries are:	A. Electrons B. Positive ions C. Negative ions D. Both (A) and (C)
22	The positive charge moving in one direction is equivalent in all external affects to a:	A. Negative charge is moving in the same direction B. Positive charge is moving in the opposite direction C. Negative charge moving in the opposite direction D. Positive charges moving in the same direction
23	A thermistor is a resistor which is:	A. Light Sensitive B. Heat Sensitive C. Sound Sensitive D. All of these
24	Flux through a closed surface of any shape and flux through the surface of a sphere drawn around a charge are:	A. Different B. Same C. Such that it is greater in the first case D. Such that it is greater in the second case
25	The surface destiny of charge is defined is:	A. Charge per volume B. Mass per volume C. Charge per area D. Mass per area
26	When two spherical conducting balls at different potentials are joined by metallic wire, the current starts:	A. Decreasing from zero to maximum B. Increasing from zero to maximum C. Decreasing from maximum to zero D. Increasing from maximum to zero
27	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
28	Heating effect of current utilized in:	A. Electric motor B. Electric toaster C. Electroplating D. Electric kettle
29	When a constant potential difference is applied across the conductor, the drift velocity of electrons:	A. Increases B. Decreases C. Remains the constant D. Either of these
30	The current that flows through the coil of a motor causes	A. Its shaft to revolve B. Its brushes to rotate C. Motor to move D. Its shaft to rotate

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ECAT Pre General Science Physics Chapter 13 MCQ Test With Answer

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

ECAT Pre General Science Physics Chapter 13 Current Electricity

The surface destiny of charge is defined is:

An example of photoconductor is:

The charge carries in the electrolyte are:

An ideal voltmeter has:

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

The earth’s potential and potential at infinity are taken:

The fourth band is a:

In gases, the charge carriers are:

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

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:

An inkjet printer uses in its operation:

Electric flux is:

Field lines are closer to each other in the region where the field is:

An important part of photocopier is:

Thermistors are prepared under

The obvious effect/s of current is/are:

If the ends of a wire are connected to a battery an electric field E will be set up at:

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

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

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

Gaussian surface is always:

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

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

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:

Electrolysis is the study of conduction of electricity through:

The device which can convert heat energy into electrical energy is called:

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

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

The charge carriers in an electrolyte are

The emf is measured in:

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Top Scorers Of ECAT Pre General Science Physics Chapter 13 Current Electricity MCQ`s Test

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