Question 1 Charge on one electron is ___________coulomb

Option A 1.62x10-19

Option B 1.62x1019

Option C 6.24x1018

Option D 6.24x10-19

Option E

Correct Answer A

Explanation(Optional) No Explanation

Difficulties

Sub Topic Elementary concepts

Question 2 The direction of conventional current is _______________

Option A Opposite to the direction of electrons

Option B Same as the direction of electrons

Option C From negative to positive of battery in external circuit

Option D None of the above

Option E

Correct Answer A

Explanation(Optional)

Difficulties

Sub Topic

Question 3 The rate of flow of charge is __________

Option A Voltage

Option B e.m.f

Option C Current

Option D Electric potential

Option E

Correct Answer C

Explanation

Difficulties

Sub Topic

Question 4 The unit of current is

Option A Newton

Option B Ohms

Option C Coulumbs/sec

Option D Volts

Option E

Correct Answer C

Explanation

Difficulties

Sub Topic

Question 5 The unit of electric potential is

Option A Ohm

Option B Coulomb

Option C Ampere

Option D Volt

Option E

Correct Answer D

Explanation

Difficulties

Sub Topic

Question 7 The reistance of wire is 10.If its length is doubled its resistance will be ________________

Option A 20

Option B 40

Option C 10

Option D 1

Option E

Correct Answer b

Explanation

Difficulties

Sub Topic

Question 6 A material with highest value of resistivity is the best

Option A ConductorOption B SemiconductorOption C InsulatorOption D None of theseOption ECorrect Answer

C

ExplanationDifficultiesSub Topic

Question 8 Ohms law is applicable when _____________is constant

Option A Voltage

Option B Temperature

Option C Current

Option D power

Option E

Correct Answer B

Explanation

Difficulties

Sub Topic

Question 9 The resistance of the metals increases as the temperature_________

Option A Increases

Option B Decreases

Option C Remains constant

Option D None of these

Option E

Correct Answer A

Explanation

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Sub Topic

Question 10 _______________are used to manufacture resistance boxes

Option A Alloys

Option B Semiconductors

Option C Insulators

Option D Metals

Option E

Correct Answer A

Explanation

Difficulties

Sub Topic

Question 11 The unit of R.T.C is

Option A C

Option B C

Option C C

Option D C

Option E

Correct Answer C

Explanation

Difficulties

Sub Topic

Question 12 Semiconductors have __________temperature coefficient of resistivityOption A PositiveOption B NegativeOption C ZeroOption D None of theseOption ECorrect Answer CExplanationDifficultiesSub Topic

Question 13 A coil has a resistance of 20 at 20C and its R.T.C at 0C is 0.003C then its resistance at 50C

Option A 23

Option B 21.8

Option C 21.698

Option D 218

Option E

Correct Answer C

Explanation

Difficulties

Sub Topic

Question 14 Insulation resistance is the opposition to the ___________

Option A Flow of conventional current

Option B Leakage current

Option C Leakage flux

Option D None of these

Option E

Correct Answer B

Explanation

Difficulties

Sub Topic

Question 15 The path of leakage current through the conductor is _____________

Option A Only on the surface of conductor

Option B Radially inward

Option C Radially outward

Option D None of these

Option E

Correct Answer C

Explanation

Difficulties

Sub Topic

Question 16 If two cables are joined in series ___________

Option A Their conductor resistance are in series while their insulation resistances are in parallel

Option B Their conductor resistance are in parallel while their insulation resistances are in series

Option C Their conductor resistance as well as their insulation resistances are in parallel

Option D Their conductor resistance as well as their insulation resistances are in series

Option E

Correct Answer A

Explanation

Difficulties

Sub Topic

Question 17 The insulation resistance is of the order of ______________

Option A Ohms

Option B Milliohms

Option C Mega ohms

Option D Few hundreds of ohms

Option E

Correct Answer C

Explanation

Difficulties

Sub Topic

Question 18 The S.I system is divided into ___________base units &________Supplementary units

Option A 2,7

Option B 7,2

Option C 7,7

Option D 2,2

Option E

Correct Answer B

Explanation

Difficulties

Sub Topic

Question 19 One joule per second means one

Option A Ampere

Option B Watt

Option C Volt

Option D Newton-meter

Option E

Correct Answer B

Explanation

Difficulties

Sub Topic

Question 20 A 100 w lamp operates for 4 hours per day then its energy consumption per day is_______________

Option A 4 units

Option B 4Wh

Option C 0.4 units

Option D O.4Wh

Option E

Correct Answer C

Explanation

Difficulties

Sub Topic

Question 21 The unit of specific heat capacity is ________________

Option A J-Kg/-K

Option B J-/Kg-K

Option C J-Kg-K

Option D None of these

Option E

Correct Answer B

Explanation

Difficulties

Sub Topic

Question 22 1KWh=_____________________Kcal

Option A 0.24x106

Option B 0.116

Option C 860

Option D 0.86

Option E

Correct Answer C

Explanation

Difficulties

Sub Topic

Question 23 7.2MJ=

Option A 1KWh

Option B 2KWh

Option C 1000Wh

Option D 1Wh

Option E

Correct Answer D

Explanation

Difficulties

Sub Topic

Question 24 The practical unit of electrical energy is _____________Option A KW-hrOption B Watt-hrOption C Watt-secondOption D Joule-secondOption ECorrect Answer AExplanationDifficulties

Sub Topic

Question 25 A 40 kg fuel is burned to produce 1720kcal energy then its calorific value is________________

Option A 180J/Kg

Option B 180KJ/Kg

Option C 43KJ/Kg

Option D 43J/Kg

Option E

Correct Answer B

Explanation

Difficulties

Sub Topic

Question 26 A 60W light bulb is in a socket supplied with 120v.What is the current in the bulb?

Option A 0.50A

Option B 2.0A

Option C 60A

Option D 200A

Option E

Correct Answer A

Explanation

Difficulties

Sub Topic

Question 27 Which is a unit of power?

Option A KWh

Option B W/s

Option C A.

Option D J/s

Option E

Correct Answer D

Explanation

Difficulties

Sub Topic

Question 28 Ohms law is not applicable to

Option A D.C circuits

Option B High currents

Option C Semi-conductors

Option D Small resistors

Option E

Correct Answer C

Explanation

Difficulties

Sub Topic

Question 29 Complete the expression :R2= R1(1+_____________)

Option A0t

Option Btt

Option Ct/0

Option Dt/t

Option E

Correct Answer A

Explanation

Difficulties

Sub Topic

Question 30 The resistance of the coil increases from50 to 59.6from 20C. If its R.T.Cat20C is 0.0032/C,then its final temperature is ____________C

Option A 80

Option B 60

Option C 40

Option D 20

Option E

Correct Answer A

Explanation

Difficulties

Sub Topic

Question 31 As temperature increases insulation resistance ______________

Option A Increases

Option B Decreases

Option C Remain same

Option D None of the same

Option E

Correct Answer B

Explanation

Difficulties

Sub Topic

Question 32 The force exerted on a body rotating at a particular distance of 5cm from the axis is 100 N then the torque acted on that body is _______

Option A 0.5N-m

Option B 5N-cm

Option C 5N-m

Option D 500N-m

Option E

Correct Answer C

Explanation

Difficulties

Sub Topic

Question 33 _________________energy depends upon the position of body

Option A Molecular energy

Option B Potential energy

Option C Atomic energy

Option D Kinetic energy

Correct Answer B

Explanation

Difficulties

Sub Topic

Question 34 The quantity of heat gained or lost due to change in temperature is called _______________

Option A Sensible heat

Option B Specific heat

Option C Latent heat

Option D enthalpy

Option E

Correct Answer A

Explanation

Difficulties

Sub Topic

Question 35 The quantity of heat produced by burning unit mass of the substance is called ______________of the fuel

Option A Calorific value

Option B Specific heat

Option C Latent heat

Option D enthalpy

Option E

Correct Answer A

Explanation

Difficulties

Sub Topic

Question 36 The meters used to measure the domestic power consumption by the electrical company are__________

Option A Voltmeters

Option B Wattmeter’s

Option C Energy meters

Option D ammeters

Option E

Correct Answer C

Explanation

Difficulties

Sub Topic

Question 37 The water pump used to lift the water converts ___________energy into___________energy

Option A Mechanical, electrical

Option B hydraulic, electrical

Option C electrical ,Mechanical

Option D Electrical,thermal

Option E

Correct Answer C

Explanation

Difficulties

Sub Topic

Question 38 A wire carries a current of 5 A for 10 seconds to generate the heat of 500 joules then the resistance of the wire is ______________

Option A 1

Option B 0.5

Option C 5

Option D 2

Option E

Correct Answer D

Explanation

Difficulties

Sub Topic

Question 39 A cable has conductor diameter of 5cm and thickness of the insulation is 2cm.if the resistivity of insulation is 6x1010-mthen the insulation resistance of 250m cable is approximately ______________M

Option A 22.45

Option B 12.85

Option C 32.75

Option D 100.25

Option E

Correct Answer A

Explanation

Difficulties

Sub Topic

Question 40 In case of liquids ,ohms law is

Option A Fully obeyed

Option B Partially obeyed

Option C There is no relation between current & potential difference

Option D None of the above

Option E

Correct Answer A

Explanation

Difficulties

Sub Topic

Question 41 Insulators have __________temperature co-efficient of resistance

`Option A Zero

Option B Positive

Option C Negative

Option D None of the above

Option E

Correct Answer C

Explanation

Difficulties

Sub Topic

Question 42 Eureka has______________ temperature coefficient of resistance

Option A Almost zero

Option B Negative

Option C Positive

Option D None of the above

Option E

Correct Answer A

Explanation

Difficulties

Sub Topic

Question 43 A wire has a resistance of 10Ω.It is stretched by one tenth of its original length. then its resistance will be

Option A 10Ω

Option B 12.1Ω

Option C 9Ω

Option D 11Ω

Option E

Correct Answer B

Explanation

Difficulties

Sub Topic

Question 44 A tap supplies water at 22°C.A man takes 1 litre of water per minute at 37°C from the geyser. the power of geyser is

Option A 1050W

Option B 1575W

Option C 525W

Option D 2100W

Option E

Correct Answer A

Explanation

Difficulties

Sub Topic

Question 45 If the current in electric bulb drops by 2% then power decreases by ________%

Option A 1

Option B 2

Option C 4

Option D 16

Option E

Correct Answer C

Explanation

Difficulties

Sub Topic

Question 46 The quantity of heat required to change the state of the substance without change in temperature is called ____________

Option A Sensible heat

Option B Specific heat

Option C Latent heat

Option D enthalpy

Option E

Correct Answer C

Explanation

Difficulties

Sub Topic

Question 47 Which of the following is not same as watt?joule/sec

Option A Amperes/volt

Option B Amperes/volts

Option C Amperes2 Xohm

Option D

Option E Xohm

Correct Answer B

Explanation

Difficulties

Sub Topic

Question 48 Ohms law is not applicable to

Option A Dc circuits

Option B High currents

Option C Semi-conductors

Option D Small resistors

Option E

Correct Answer C

Explanation

Difficulties

Sub Topic

Question 49 A wire carries a current of 5A for 10 sec to generate the heat of 500 joules then the resistance of the wire is ________Ω

Option A 1

Option B 0.5

Option C 5

Option D 2

Option E

Correct Answer D

Explanation

Difficulties

Sub Topic

Question 50 ___________________is the energy possessed by the body due to its motion

Option A Molecular energy

Option B Potential energy

Option C Atomic energy

Option D Kinetic energy

Option E

Correct Answer D

Explanation

Difficulties

Sub Topic