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	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)
2	The emf is measured in:	A. Newton B. Volt C. J/C D. Both A and B
3	The number of field lines passing through unit area held perpendicular to the field lines represent:	A. Flux in that region B. Intensity of the field C. Charge D. Area of the region
4	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
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 case of metallic conductors, the charge carriers are	A. Protons B. Electrons C. Antiprotons D. Positrons
7	In gases, the charge carries are:	A. Electrons B. Positive ions C. Negative ions D. Both (A) and (C)
8	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)
9	Two dissimilar metals joined at their ends kept at constant temperature constitute:	A. Cell B. Voltmeter C. Thermocouple D. Potentiometer
10	Heating effect of current utilized in:	A. Electric motor B. Electric toaster C. Electroplating D. Electric kettle
11	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
12	Which instrument is expensive and difficult to use?	A. Voltmeter B. Potentiometer C. CRO D. Both A and C
13	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
14	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
15	An electric field is generated along the wire when:	A. Its resistance is very high B. A constant potential is maintained across the wire C. Net current through the wire is zero D. A constant potential difference is maintained across the wire
16	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)
17	As the current flow through the wire:	A. It generates heat in the wire B. It produces sound in the wire C. Resistance of the wire decreases D. Voltage across the ends is increased
18	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
19	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
20	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
21	The rate at which the free electrons pass through any section of a metallic wire from right to left is:	A. Greater than the speed at which they pass from left to right B. Less than the speed at which they pass from left to right C. The same speed at which they pass from left to right D. Any of above
22	The third band of the colour code:	A. Gives the number of zeroes B. Is decimal multiplier C. Gives the resistance tolerance D. Gives the third digit
23	The quantity having the same unit as that of emf is:	A. Force B. Energy C. Potential D. Current
24	Xerography means:	A. Dry writing B. Wet writing C. Poor writing D. Excellent writing
25	The value of resistivity is the least for:	A. Copper B. Aluminimum C. Silver D. Tungsten
26	Another mean of electric potential energy per unit charge is given by:	A. Electric intensity B. Potential gradient C. Electric Flux D. Potential difference
27	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
28	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
29	The surface destiny of charge is defined is:	A. Charge per volume B. Mass per volume C. Charge per area D. Mass per area
30	The fourth band is a:	A. Silver band B. Red band C. Gold band D. Either A or C

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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

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

Electrolysis is the study of conduction of electricity through:

Electric field lines emerge from the charge in:

Heating effect of current utilized in:

Which instrument is expensive and difficult to use?

An eV is unit of:

An important part of photocopier is:

In case of metallic conductors, the charge carriers are

The charge carriers in an electrolyte are

Tick the correct statement:

The magnitude of chemical Effects depends upon:

The fourth band is a:

The current that flows through the coil of a motor causes:

In case of metallic conductors, the change carries are:

The free electrons in metals:

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

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

Kirchhoff's first rule is also called:

Static electricity is produced by the transfer of:

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

An ideal voltmeter has:

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

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

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

The value of relative permittivity of different dielectrics are:

An electric field is generated along the wire when:

An important part of inkjet printer is:

As the current flows through the wire

The surface destiny of charge is defined is:

Xerography means:

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

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