
An electric cell has …………… terminals.
A.
B.
C.
D.
Answer
515.4k+ views
Hint: Two terminals in a cell are positive and negative. Now, due to the difference in potential between the terminals, the charge carrier of the element which is applied across the cell, starts flowing.
Complete step by step answer:
An electric cell has two terminals, one positive and one negative because of which the current cannot pass through one side. It can only travel through opposite sides.
The positive terminal in an electric cell is known as cathodes and that of the negative terminal is called anode.
When an electric cell is connected to a circuit, electrons flow away from the negative terminal in the circuit but within the cell, electrons flow towards the negative terminal.
Hence, the correct option is (A).
Note:
1. Electrons are flowing through the wire because wires are conductors. This means that their outer electron shells are not completely filled. So, electrons become delocalized and move around when an electric field is applied [i.e. battery is connected] across the wire. The electrons move in particular direction due to their charge.
2. When a wire is connected to the two terminals of a cell, the current flows from positive to the negative terminal of a cell. On the other hand, if just two wires are connected to the terminals without making a close loop, then there will not be any current flow because a complete closed loop would only constitute a current flow.
Complete step by step answer:
An electric cell has two terminals, one positive and one negative because of which the current cannot pass through one side. It can only travel through opposite sides.
The positive terminal in an electric cell is known as cathodes and that of the negative terminal is called anode.
When an electric cell is connected to a circuit, electrons flow away from the negative terminal in the circuit but within the cell, electrons flow towards the negative terminal.
Hence, the correct option is (A).
Note:
1. Electrons are flowing through the wire because wires are conductors. This means that their outer electron shells are not completely filled. So, electrons become delocalized and move around when an electric field is applied [i.e. battery is connected] across the wire. The electrons move in particular direction due to their charge.
2. When a wire is connected to the two terminals of a cell, the current flows from positive to the negative terminal of a cell. On the other hand, if just two wires are connected to the terminals without making a close loop, then there will not be any current flow because a complete closed loop would only constitute a current flow.
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