2nd Year Physics Chapter 13 Online MCQ Test for 12th Class Physics Chapter 13 (Current Electricity)

ICS Part 2 Physics
Chapter 13 Test

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MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 13 Online MCQ's Test"

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Physics ICS Part 2 Chapter 13 Online MCQ's Test

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Question # 1

The resistivity of two wires isρ1 andρ2 which are connected in series. If there dimentions are same then the equivalent resistivity of the combination will be:

Question # 2

Specific resistance of a material depends upon.

Question # 3

Drift velocity of electrons is.

Question # 4

If 1 x 107 electrons passes through a conductor in 1.0 micro second , then the current is.

Question # 5

The unit of conductivity is:

Question # 6

Seven resistances are connected as shown in the figures . THe equivalent resistance between A and B is:

Question # 7

Resistivity at a given temperature depends upon.

Question # 8

Thermistor with high - ve temperature coefficient are very accurate for measuring low temperature especially near is.

Question # 9

A rheostat can operate as.

Question # 10

Calculate current in 2 2R /4Ω resistor.

Question # 11

The algebraic sum of potential change in a closed circuit is zero. 

Question # 12

Magnetic effect of current is used

Question # 13

Tolerance of "Gold" band.

Question # 14

The thermistors convert changes of temperature into.

Question # 15

The fraction change in resistance per Kelvin is known as:

Question # 16

The powers of two electric bulbs are 100w and 200w. Which are connected to power supply of 220 V. The ratio of resistance of their filament will be:

Question # 17

Potentiometer is used to.

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ICS Part 2 Physics Chapter 13 Online Test MCQ's

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Resistance tolerance for gold colour is.
A. 50%
B. 30%
C. 20%
D. 5%
2 A certain wire has a resistance R, the resistivity of an other wire of an identical material with the first, except for twice its diameter is.
A. 1/4 R
B. 4R
C. 2R
D. Same as R
3 A rheostat can be used as variable resistor as well as a-------------
A. Potential divider
B. Current divider
C. Wheat stone bridge
D. Power divider
4 The resistivity of --------------------decrease with the increase in temp
A. Gold
B. Silver
C. Copper
D. Silicon
5 Heat energy is converted into electrical energy.
A. Solar cells
B. thermocouples
C. Electric generators
D. None of above
6 By increasing the temperature of conductor, the flow rate of charges.
A. Increase
B. Remains constant
C. Decreases
D. Changes exponentially
7 Calculate current in 2 2R /4Ω resistor.
A. 1 A
B. 2R /4Ω
C. R/3Ω
D. 2R /3Ω
8 Seven resistances are connected as shown in the figures . THe equivalent resistance between A and B is:
A. 3Ω
B. 4Ω
C. 4.5Ω
D. 5Ω
9 Potentiometer is used to.
A. Compare emf of two cells
B. Detect internal resistance of cell
C. Measure P.D.
D. All of these
10 When a wire is stretched and its radius becomes r/2, then its resistance will be
A. 16 R
B. 4 R
C. 2R
D. 0

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