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Physics CBSE Live product
Class 8 (2025-26)
Electricity: Magnetic and heating effects
Revision II - Electricity: Magnetic and heating effects
8.
Voltaic cell
Question:
5
m.
Choose the correct answer:
1
.
Electrolyte
-
A liquid that allows physical reactions to produce electricity
A liquid that allows chemical reactions to produce electricity
A liquid that allows magnetic reactions to produce electricity
A liquid that only connects the external circuit
2
.
Working of a voltaic cell
-
Mechanical energy produces chemical reactions
Heat energy produces electrical energy
Electrical energy is converted into chemical energy
Chemical reactions produce electrical energy
3
.
Current
-
Flows only inside the electrolyte and not in the circuit
Flows from positive to negative terminal through the external circuit
Flows only when the electrolyte is dry
Flows from negative to positive terminal in the external circuit
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