Question

Name three liquids which when tested in the manner shown in figure given along side may cause the magnetic needle of compass to deflect.

Answer 1

Liquids that cause magnetic needle of compass to deflect:

• Lemon juice
• Vinegar
• Salt water

Explanation:

• The image given in the question is attached below.
• The image shows a complete electrolytic circuit. The liquid acts as electrolyte.
• When these liquids are connected with wire, it breaks the atoms of liquids into cations and anions.
• These free ions gravitate towards opposite polarity and conducts electricity.
• The flow of electricity causes magnetic compass to deflect.
• The electron exchange takes place only in few liquids not in all liquids.

Answer 2

Answer:

Liquids like lemon juice, salt water and vegetable oil allow electricity to pas s through them. Hence, these liquids can be used as in the beaker to show the given effect.