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प्रश्न
State macroscopic form of Ohm’s law.
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उत्तर
The macroscopic form of Ohm’s law is V = IR
Where V → Potential difference
I → Current
R → Resistance.
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संबंधित प्रश्न
The relationship between the potential difference and the current in a conductor is stated in the form of a law.
1) Name the law.
2) What does the slope of V-I graph for a conductor represent?
3) Name the material used for making the connecting wire.
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Write the SI unit of resistivity
Four resistances of 16 ohms each are connected in parallel. Four such combinations are connected in series. What is the total resistance?
- Draw a V-I graph for a conductor obeying Ohm’s law.
- What does the slope of V–I graph for a conductor represent?
A metal sphere is kept on an insulting stands. A negatively charged rod is brought near it, then the sphere is earthed as shown. On removing the earthing, and taking the negatively charged rod away, what will be the nature of charge on the sphere? Give reason for your answer.
The ratio of the potential difference to the current is known as ________.
Ohm’s law states the relationship between power and voltage.
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- the current drawn from the cell
- current through each resistor
