Current and Electrical Circuit
Trending Questions
Q. Which device is used to control the flow of current in the circuit?
- Coil
- Bell
- Bulb
- Switch
Q. Current of 1 ampere is equivalent to:
- 1 coulomb of charge per second
- 1 coulomb of charge per 10 second
- 10 coulombs of charge per second
- 1 coulomb of charge per hour
Q. Which of the following materials allow electric current to pass through them?
- Copper
- Gold
- Silver
- Plastic
Q. In a closed circuit, electric current flows from ________ terminal.
- neutral to positive
- negative to positive
- positive to negative
- negative to neutral
Q. An electric cell is a device that converts ___________ stored in it into electrical energy.
- sound energy
- chemical energy
- solar energy
- magnetic energy
Q.
Why should switches always be connected to the live wire?
Q. Which of the following is true about the filament of an electric bulb?
- The filament is made up of a material with low melting point.
- Most of the heat is generated in the filament
- The hot filament appears to glow
- The filament is made up of a material with high melting point.
Q.
Give an example of conversion of chemical into electrical energy.
Q. The device that is used to make or break the electric circuit is known as a _________.
- bulb
- cell
- switch
- wire
Q. A battery is a combination of electric cells in series.
- True
- False
Q.
Definition of 1 ampere.
Q. What is an electric switch?
Q. What is the flow of charge called?
Q. Match the followings.
- Battery
- Negative charge
- Electric Current
Q. Which device is used to open or close an electric circuit?
- Bulb
- Bell
- Switch
- Cell
Q.
Q. The symbol of capacitor is -||-
- True
- False
Q.
The flow of which of the following fundamental particles leads to the existence of electricity in a conductor?
Protons
Electrons
Atoms
Nuclei
Q. The meniscus of a liquid contained in one of the limbs of a narrow U-tube is held electromagnet with the meniscus in line with the field. The liquid is seen to rise. This indicates that the liquid is
- anti-ferromagnetic
- paramagnetic
- diamagnetic
- non-magnetic
Q. Which among the following symbols correctly represents the given diagram?
Q.
Which of the following represents the units of current and potential difference respectively?
Volt, Ampere
Ampere, Coulomb
Ampere, Volt
Volt, Joule
Q. The speed of electric current is nearly the same as the speed of light.
- True
- False
Q. If four cells are used to make a battery, then how many terminals would the battery have?
- 6
- 4
- 2
- 8
Q. Electrons in a circuit always need a closed path to move when a potential difference is applied.
- True
- False
Q. Which of the following is the symbol of an electric battery?
Q. Which of the following is true when a comb attracts pieces of paper?
- Paper is neutral and comb is charged
- comb is neutral and paper is charged
- both are charged
- both are neutral
Q.
How do we connect these two identical cells of 1.5 volt each to design a 3.0 volt battery?
Connect terminal A to D.
Connect terminal D to B.
Connect terminal B to C.
Connect terminal A to C.