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
Posted Date:-2021-03-15 04:30:11
 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
Posted Date:-2021-03-15 04:30:11
 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
Posted Date:-2021-03-15 04:30:11
 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
Posted Date:-2021-03-15 04:30:11
 Which instrument is used to measure potential difference?
1. Galvanometer
2.Magnetometer
3.Voltmeter
4. Ammeter
Posted Date:-2021-03-15 04:30:11
 Which of the following is a current-detecting instrument?
1.Voltmeter
2.Ammeter
3.Magnetometer
4.Galvanometer
Posted Date:-2021-03-15 04:30:11
Current is inversely proportional to:
1.Potential difference
2.Resistance
3.Voltage
4.Electric power
Posted Date:-2021-03-15 04:30:11
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
Posted Date:-2021-03-15 04:30:11
Name a device used for the magnification of the objects?
1.Bolometer
2.Barometer
3. Binoculars
4. Barograph
Posted Date:-2021-03-15 04:30:11
Name a device used to measure atmospheric humidity?
1.Hygrometer
2.Gravometer
3.Avometer
4.Calorimeter
Posted Date:-2021-03-15 04:30:11
Name a device which is used to convert mechanical energy into electrical energy?
1.Dip Circle
2.Denial Cell
3.Dynamo
4.Dynamometer
Posted Date:-2021-03-15 04:30:11
Name a devise used to measure the sharpness of the electric current?
1.Gravometer
2.Electrometer
3.Galvanometer
4. Dynamometer
Posted Date:-2021-03-15 04:30:11
Name an electronic device which is used to measure the current in ampere?
1.Altimeter
2.Audiometer
3.Ammeter
4.Airometer
Posted Date:-2021-03-15 04:30:11
Name an equipment through which electrons are emitted or ejected?
1.Cathode ray tube
2.Callipers
3. Coolidge tube
4.Bolometer
Posted Date:-2021-03-15 04:30:11
Name an equipment through which the distances travelled by the wheels of the vehicles are measured?
1.Accumulator
2.Avometer
3.Animometer
4.Adiometer
Posted Date:-2021-03-15 04:30:11
Name an instrument used to measure the sound waves inside the water?
1.Comograph
2.Dictaphone
3.Crescograph
4.Hydrophone
Posted Date:-2021-03-15 04:30:11
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
Posted Date:-2021-03-15 04:30:11
Resistance of which of the following is unaffected by temperature?
1.Manganin
2.Constantan
3.Nichrome
4. All of the above
Posted Date:-2021-03-15 04:30:11
Rheostat is the other name of:
1.Fixed resistance
2.Variable resistance
3. Insulator
4.Conductor
Posted Date:-2021-03-15 04:30:11
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
Posted Date:-2021-03-15 04:30:11
The device by which artificial climate is produced:
1.Callipers
2.Cytotron
3.Cardiogram
4.Cardiogram
Posted Date:-2021-03-15 04:30:11
The device that confirms the presence of electric charge:
1.Electric Meter
2.Electro Meter
3.Electron Microscope
4. Electroscope
Posted Date:-2021-03-15 04:30:11
The equipment through which any substance be cut into very small pieces:
1.Manometer
2.Microtome
3.Micrometer
4.Machmeter
Posted Date:-2021-03-15 04:30:11
The equipment used in internal combustion heat engine, vehicle engine etc. is known as:
1.Altimeter
2.Crescograph
3.Cyclotron
4.Carburator
Posted Date:-2021-03-15 04:30:11
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
Posted Date:-2021-03-15 04:30:11
The rate at which electrical energy is consumed is called:
1.Electric power
2.Electric current
3.Electric circuit
4.Resistivity
Posted Date:-2021-03-15 04:30:11
The resistance of a conductor depends on its:
1.Length
2.Nature of material
3. Thickness
4.All of the above
Posted Date:-2021-03-15 04:30:11
The resistance which can be changed as desired is called:
1. Wire joints
2. Fixed resistance
3.Variable resistance
4. A switch
Posted Date:-2021-03-15 04:30:11
Through which device the illumination and intensity of two light sources are compared?
1.Pyrometer
2.Phototeligraphic
3.Photometer
4.Periscope
Posted Date:-2021-03-15 04:30:11
Through which equipment human’s heart beats are recorded and detected via graphics?
1.Barograph
2.Crescograph
3.Comograph
4.Cardiograph
Posted Date:-2021-03-15 04:30:11
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
Posted Date:-2021-03-15 04:30:11
What is the formula for calculating current?
1.I = V * R
2.I = V + R
3. I = V – R
4.I = V/R
Posted Date:-2021-03-15 04:30:11
What is the SI unit of electrical conductance?
1.Volt
2.Watt
3.Siemens
4. Ampere
Posted Date:-2021-03-15 04:30:11
What is the SI unit of potential difference?
1.Coulomb
2.Volt
3.Ampere
4.Ohm-metre
Posted Date:-2021-03-15 04:30:11
What is the SI unit of resistance?
1.Volt
2.Watt
3.Ohm
4. Metre
Posted Date:-2021-03-15 04:30:11
Which device is used to detect and measure the purification of the milk?
1.Microphone
2.Heart Lungs Machine
3.Ganong Respiratory
4.Lactometer
Posted Date:-2021-03-15 04:30:11
Which device is used to measure the depth of seas and oceans?
1.Gravometer
2.Fathometer
3.Gyroscope
4.Dilatometers
Posted Date:-2021-03-15 04:30:11
Which equipment is employed to project or expose pictures on the screen?
1. Epidayscope
2.Endoscope
3.Density Meter
4.Escalator
Posted Date:-2021-03-15 04:30:11
Which of the following is a part of electrical circuit?
1.Battery
2.Fixed resistance
3.Connecting wires
4.All of the above
Posted Date:-2021-03-15 04:30:11