Why electrons flow in a wire when connected to a battery?
Electrons are negatively charged, and so are attracted to the positive end of a battery and repelled by the negative end. So when the battery is hooked up to something that lets the electrons flow through it, they flow from negative to positive.
Why do electrons flow in a wire when connected to a battery class 10?
Answer: As we know un class 9, the charge of electron is positive and negative and the wire connected to battery then the charge flow to positive and negative so electron flows to positive and negative to balance the charge.
Which side of the battery is positive in a circuit diagram?
Explain that the longer horizontal line in the battery symbol depicts the positive (+) terminal and the shorter horizontal line depicts the negative (–) terminal.
Is current flow opposite to electron flow?
Electrons being negatively charged flow from the negative terminal to the positive terminal of the voltage source. So, the current flow is considered in the direction opposite to the direction of flow of electrons.
Why does current only flow in a closed circuit?
An electric current can only flow when there is a closed path in which electrons can move.
Which controls the flow of current in a circuit?
REGULATOR
How do you reduce current flow?
The current in a circuit is directly proportional to the electric potential difference impressed across the circuit and inversely proportional to the resistance of the circuit. Reducing the current can be done by reducing the voltage (choice A) or by increasing the resistance (choice D). 2.
Who is responsible for the flow of current in liquids?
Answer. Answer: The current through them is constituted by the flow of electrons. Other liquids conduct electricity because they have ions.
Who is responsible for the flow of current in a metallic conductor?
electrons
What is responsible for flowing of current in electrolytes?
The flow of current through electrolyte solution is due to migration of ions. The ions act as charge carriers and hence conduct electricity.
Which electrons are responsible for current in a material?
Some materials have a free electron in their valence shell and this electron can easily move from atom to atom. The free electrons are responsible for electrical current.
How is an N type semiconductor formed?
An N-type semiconductor is a type of material used in electronics. It is made by adding an impurity to a pure semiconductor such as silicon or germanium. The impurities used may be phosphorus, arsenic, antimony, bismuth or some other chemical element. They are called donor impurities.
What causes electrons to move in a conductor?
The amount of electrical potential energy per charge is called the voltage. It may be helpful to present voltage as the “electrical pressure” that causes the electrons to move in a conductor.