Physics
Grade-9
Easy
Question
What is the direction of electrons in an electric circuit?
- Positive terminal to negative terminal
- Positive terminal to positive terminal
- Negative terminal to negative terminal
- Negative terminal to positive terminal
Hint:
The constant flow of electrons in an electric circuit is what causes electric current.
The positive terminal of the cell is connected to the negative terminal in the typical direction of current flow. Thus, electrons flow from the cell's negative terminal to its positive terminal.
The correct answer is: Negative terminal to positive terminal
The direction of electrons in an electric circuit is from the negative terminal to the positive terminal.
- The constant flow of electrons in an electric circuit is what causes electric current.
- The electrons in an electric circuit flow from the negative terminal to the positive terminal.
- The electrons have a negative charge and they are getting attracted to the positive terminal.
- This is why the electrons in a battery or a circuit flow from the negative to the positive terminal.
Related Questions to study
Physics
____ converts electrical energy into other forms of energy and is attached in an electric circuit.
- Electric load
- Closed load
- Open loop
- Electric circuit
____ converts electrical energy into other forms of energy and is attached in an electric circuit.
PhysicsGrade-9
- Electric load
- Closed load
- Open loop
- Electric circuit
Physics
When a compressive force is applied to a quartz crystal then:
- Positive charges are induced
- Negative charges are induced
- No charges are induced
- Both positive and negative charges are induced
When a compressive force is applied to a quartz crystal then:
PhysicsGrade-9
- Positive charges are induced
- Negative charges are induced
- No charges are induced
- Both positive and negative charges are induced
Physics
Simran is trying to make a solar cell. She stacks many individual cells together. What material should she use?
- Diodes
- Electro-metals
- Semiconductors
- Solarductors
Simran is trying to make a solar cell. She stacks many individual cells together. What material should she use?
PhysicsGrade-9
- Diodes
- Electro-metals
- Semiconductors
- Solarductors
Physics
Can you produce current in a wire with a magnet that is sitting still?
- Yes, having a magnet near the wire is enough
- No, the magnet must move
- No, magnets cannot create electricity
- No, a wire does not conduct electricity
Can you produce current in a wire with a magnet that is sitting still?
PhysicsGrade-9
- Yes, having a magnet near the wire is enough
- No, the magnet must move
- No, magnets cannot create electricity
- No, a wire does not conduct electricity
Physics
In piezoelectric transducer, the polarity of produced charge depends upon.
- Transducer orientation
- Piezoelectric material property
- The direction of applied stress
- All the above
In piezoelectric transducer, the polarity of produced charge depends upon.
PhysicsGrade-9
- Transducer orientation
- Piezoelectric material property
- The direction of applied stress
- All the above
Physics
Ruby rubs her socks along the woolen carpet as she walks across her house. She grabs onto a metal doorknob. What will most likely happen as she touches the door knob?
- The charge will disappear
- The charge will repel her
- She will get a light shock
- She will build up more charge
Ruby rubs her socks along the woolen carpet as she walks across her house. She grabs onto a metal doorknob. What will most likely happen as she touches the door knob?
PhysicsGrade-9
- The charge will disappear
- The charge will repel her
- She will get a light shock
- She will build up more charge
Physics
Charging by friction results in two objects with the same charge. What do you think about this statement?
- True
- False
- Incomplete information
- Cannot be determined
Charging by friction results in two objects with the same charge. What do you think about this statement?
PhysicsGrade-9
- True
- False
- Incomplete information
- Cannot be determined
Physics
If you rub a glass rod with a piece of silk which of these is not true?
- Rod becomes positively charged
- Silk has become negatively charged
- Friction causes charges in both
- Glass attracts more protons
If you rub a glass rod with a piece of silk which of these is not true?
PhysicsGrade-9
- Rod becomes positively charged
- Silk has become negatively charged
- Friction causes charges in both
- Glass attracts more protons
Physics
What method of static charging is shown in this picture:

- Polarization
- Friction
- Induction
- Conduction
What method of static charging is shown in this picture:

PhysicsGrade-9
- Polarization
- Friction
- Induction
- Conduction
Physics
An object becomes positively charged by:
- Losing electrons
- Gaining electrons
- Losing protons
- Gaining protons
An object becomes positively charged by:
PhysicsGrade-9
- Losing electrons
- Gaining electrons
- Losing protons
- Gaining protons
Physics
Certain materials produce electricity when struck by light. They are called as ________.
- Photovoltaic
- Magnetomotive
- Electrolytic
- Chemically active
Certain materials produce electricity when struck by light. They are called as ________.
PhysicsGrade-9
- Photovoltaic
- Magnetomotive
- Electrolytic
- Chemically active
Physics
If a body is charged by rubbing, its weight:
- Increases
- Decreases
- Can increase or decrease
- Cannot say
If a body is charged by rubbing, its weight:
PhysicsGrade-9
- Increases
- Decreases
- Can increase or decrease
- Cannot say
Physics
Which statement is true about both the figures?

- ‘A’ shows thermocouple effect and ‘B’ shows friction to produce electricity
- ‘A’ shows thermocouple effect and ‘B’ shows piezoelectric effect to produce electricity
- ‘A’ shows piezoelectric effect and ‘B’ shows thermocouple effect to produce electricity
- ‘A’ shows friction and ‘B’ shows thermocouple effect to produce electricity
Which statement is true about both the figures?

PhysicsGrade-9
- ‘A’ shows thermocouple effect and ‘B’ shows friction to produce electricity
- ‘A’ shows thermocouple effect and ‘B’ shows piezoelectric effect to produce electricity
- ‘A’ shows piezoelectric effect and ‘B’ shows thermocouple effect to produce electricity
- ‘A’ shows friction and ‘B’ shows thermocouple effect to produce electricity
Physics
What is the function of every generator?
- Changing wind energy into electrical energy
- Changing heat energy into electrical energy
- Changing mechanical energy into electrical energy
- Changing solar energy into electrical energy
What is the function of every generator?
PhysicsGrade-9
- Changing wind energy into electrical energy
- Changing heat energy into electrical energy
- Changing mechanical energy into electrical energy
- Changing solar energy into electrical energy
Physics
Ordinary rubber is an insulator, but the special rubber that is tyres of air crafts are made slightly conducting. Why is this necessary?
- To decrease the price.
- To increase the aircrafts stability.
- To remove the charges generated due to friction.
- Incomplete information.
Ordinary rubber is an insulator, but the special rubber that is tyres of air crafts are made slightly conducting. Why is this necessary?
PhysicsGrade-9
- To decrease the price.
- To increase the aircrafts stability.
- To remove the charges generated due to friction.
- Incomplete information.