Multiple Choice QuestionsThe potential difference across a conductor of resistivity e is constant. The heat generated in the conductor is directly proportional to
e
e2
Which one of the following is not a conductor of electricity?
Saltwater
Distilled water
Vinegar
Lime juice
B.
Distilled water
Distilled water is not electrolyte i.e. it is not capable to furnish ions in its solution and does not current flows due to the motion of ions. While saltwater, vinegar, and lime juice are electrolyte and they are made up of ions and flow current in a liquid or fused state.
Which of the following process/processes destroy/destroys the magnetic properties of a bar magnet?
I, II and III
I and IV
Only I
II and III
The common characteristic properties of plastics are
durable, good conductor of electricity, non-reactive
durable, good conductor of heat, non-reactive
good conductor of heat, light in weight, a good conductor of electricity
durable, light in weight, non-reactive
The current i flowing through the cell in the given circuit is (internal resistance of cell is zero)
1 A
3/2 A
2 A
3 A
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