Physics/G.K Question and Answer - Physics Set IV Sample Test,Sample questions

Question:
A continuous conducting path consisting of wires and other resistances and a switch, between the two terminals of a battery along which an electric current flows is called:

1.Resistivity

2.Circuit

3.Electric power

4.Insulator


Question:
 A flow of electric charges in a conductor such as in a metal wire is called:

1.Electric circuits

2.Electric current

3. Resistance

4.Electric power


Question:
 In an electric circuit, the amount of work done in moving a unit charge from one point to the other point is called:

1.Electric potential

2.Conductor

3.Potential difference

4.Electric charge


Question:
 When 1 coulomb of charge flows through any cross-section of a conductor in 1 second, the electric current flowing through it is said to be:

1. 1 volt

2.1 ampere

3.1 watt

4.1 metre


Question:
 Which instrument is used to measure potential difference?

1. Galvanometer

2.Magnetometer

3.Voltmeter

4. Ammeter


Question:
 Which of the following is a current-detecting instrument?

1.Voltmeter

2.Ammeter

3.Magnetometer

4.Galvanometer


Question:
Current is inversely proportional to:

1.Potential difference

2.Resistance

3.Voltage

4.Electric power


Question:
The resistance of a wire is inversely proportional to the:

1.Four times of its diameter

2.Square of its diameter

3. ¼ of its diameter

4.1/3 of its diameter


Question:
Name a device used for the magnification of the objects?

1.Bolometer

2.Barometer

3. Binoculars

4. Barograph


Question:
Name a device used to measure atmospheric humidity?

1.Hygrometer

2.Gravometer

3.Avometer

4.Calorimeter


Question:
Name a device which is used to convert mechanical energy into electrical energy?

1.Dip Circle

2.Denial Cell

3.Dynamo

4.Dynamometer


Question:
Name a devise used to measure the sharpness of the electric current?

1.Gravometer

2.Electrometer

3.Galvanometer

4. Dynamometer


Question:
Name an electronic device which is used to measure the current in ampere?

1.Altimeter

2.Audiometer

3.Ammeter

4.Airometer


Question:
Name an equipment through which electrons are emitted or ejected?

1.Cathode ray tube

2.Callipers

3. Coolidge tube

4.Bolometer


Question:
Name an equipment through which the distances travelled by the wheels of the vehicles are measured?

1.Accumulator

2.Avometer

3.Animometer

4.Adiometer


Question:
Name an instrument used to measure the sound waves inside the water?

1.Comograph

2.Dictaphone

3.Crescograph

4.Hydrophone


Question:
One volt is equal to:

1.1 J C-1

2. 2 J C

3.1.5 J C-1

4.0.5 J C-1


Question:
Resistance of which of the following is unaffected by temperature?

1.Manganin

2.Constantan

3.Nichrome

4. All of the above


Question:
Rheostat is the other name of:

1.Fixed resistance

2.Variable resistance

3. Insulator

4.Conductor


Question:
The actual flow of electrons which constitute the current is from:

1.Negative to positive terminal

2. Positive to negative terminal

3.Flow at random

4. None of the above


Question:
The device by which artificial climate is produced:

1.Callipers

2.Cytotron

3.Cardiogram

4.Cardiogram


Question:
The device that confirms the presence of electric charge:

1.Electric Meter

2.Electro Meter

3.Electron Microscope

4. Electroscope


Question:
The equipment through which any substance be cut into very small pieces:

1.Manometer

2.Microtome

3.Micrometer

4.Machmeter


Question:
The equipment used in internal combustion heat engine, vehicle engine etc. is known as:

1.Altimeter

2.Crescograph

3.Cyclotron

4.Carburator


Question:
The law which gives relationship between current and potential difference is called:

1.Ohm’s law

2. Ampere’s law

3.Biot-Savart law

4.Coulomb’s law


Question:
The rate at which electrical energy is consumed is called:

1.Electric power

2.Electric current

3.Electric circuit

4.Resistivity


Question:
The resistance of a conductor depends on its:

1.Length

2.Nature of material

3. Thickness

4.All of the above


Question:
The resistance which can be changed as desired is called:

1. Wire joints

2. Fixed resistance

3.Variable resistance

4. A switch


Question:
Through which device the illumination and intensity of two light sources are compared?

1.Pyrometer

2.Phototeligraphic

3.Photometer

4.Periscope


Question:
Through which equipment human’s heart beats are recorded and detected via graphics?

1.Barograph

2.Crescograph

3.Comograph

4.Cardiograph


Question:
To which device is the two ends of a conductor are connected to maintain a potential difference and get a continuous flow of current?

1.Bulb

2.Cell

3. Tube light

4.All of the above


Question:
What is the formula for calculating current?

1.I = V * R

2.I = V + R

3. I = V – R

4.I = V/R


Question:
What is the SI unit of electrical conductance?

1.Volt

2.Watt

3.Siemens

4. Ampere


Question:
What is the SI unit of potential difference?

1.Coulomb

2.Volt

3.Ampere

4.Ohm-metre


Question:
What is the SI unit of resistance?

1.Volt

2.Watt

3.Ohm

4. Metre


Question:
Which device is used to detect and measure the purification of the milk?

1.Microphone

2.Heart Lungs Machine

3.Ganong Respiratory

4.Lactometer


Question:
Which device is used to measure the depth of seas and oceans?

1.Gravometer

2.Fathometer

3.Gyroscope

4.Dilatometers


Question:
Which equipment is employed to project or expose pictures on the screen?

1. Epidayscope

2.Endoscope

3.Density Meter

4.Escalator


Question:
Which of the following is a part of electrical circuit?

1.Battery

2.Fixed resistance

3.Connecting wires

4.All of the above


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