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	An ideal voltmeter has:	A. Zero resistance B. Small resistance C. Large resistance D. Infinite resistance
2	In a metal, the valence electrons are:	A. Attached to individual atoms B. Not attached to individual atoms C. Free to move within the metal D. Both A and B
3	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)
4	When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:	A. Decreases B. Increases C. Remains the constant D. Either of these
5	Electric flux is:	A. Cross product of two vector B. Dot product of two vectors C. A vector quantity D. A scalar quantity
6	In gases, the charge carries are:	A. Electrons B. Positive ions C. Negative ions D. Both (A) and (C)
7	Which instrument is expensive and difficult to use?	A. Voltmeter B. Potentiometer C. CRO D. Both A and C
8	Electric field lines emerge from the charge in:	A. One dimension B. Two dimensions C. Three dimensions D. Four dimensions
9	The fourth band is a:	A. Silver band B. Red band C. Gold band D. Either A or C
10	When two spherical conducting balls at different potentials are joined by a metallic wire, after some time:	A. Both the conductors are at the same potential B. Potential difference across the conductors remain constant C. Potential difference across the conductors becomes zero D. Both (A) and (B)
11	When two spherical conducting balls at different potentials are joined by a metallic wire, after some time:	A. Both the conductors are at the same potential B. Potential difference across the conductors remain constant C. Potential difference across the conductors becomes zero D. Both (A) and (B)
12	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
13	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
14	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
15	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
16	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
17	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
18	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
19	As the current flows through the wire	A. It generates heat in the wire B. It produces sound in the wire C. Resistance of the wire decrease D. Voltage across the ends is the increase
20	The obvious effect/s of current is/are:	A. Heating effect B. Magnetic effect C. Chemical effect D. Both (C) and (B)
21	A rheostat can e used:	A. As variable resistor B. As potential divider C. For varying the current D. All of these
22	The charge carries in the electrolyte are:	A. Positive ions B. Negative ions C. Either (A) or (B) D. Both (A) and (B)
23	The passage of current is accompanied by a magnetic field in the surrounding space:	A. Always accompanied B. Sometimes accompanied C. Never accompanied D. Any of above
24	The best conductor is:	A. Silver B. Copper C. Aluminimum D. Both B and C
25	A field free region is found:	A. Near the outer surface of a hollow charged metal sphere B. In the interior of solid metal uncharged sphere C. In the interior of solid metal charged sphere D. Both (A) and (B)
26	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)
27	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
28	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
29	An example of photoconductor is:	A. Boron B. Carbon C. Iron D. Aluminum
30	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

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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

In case of metallic conductors, the charge carriers are

Xerography means:

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

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

Another mean of electric potential energy per unit charge is given by:

Static electricity is produced by the transfer of:

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

Two dissimilar metals joined at their ends kept at constant temperature constitute:

The passage of current is accompanied by a magnetic field in the surrounding space:

When two spherical conducting balls at different potentials are joined by metallic wire, the current starts:

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

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

An inkjet printer uses in its operation:

Magnetic effect of current is used:

A field free region is found:

An electric field is generated along the wire when:

Most practical applications of electricity involve

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

Kirchhoff's first rule is also called:

In case of metallic conductors, the charge carriers are

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

An important part of photocopier is:

In a metal, the valence electrons are:

The electric flux through any surface depends upon:

Which of the following substances has got positive temperature coefficient of resistance?

An important part of inkjet printer is:

The emf is measured in:

An eV is unit of:

The free electrons in metals:

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

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

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