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प्रश्न
The ratio of the potential difference to the current is known as ________.
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उत्तर
The ratio of the potential difference to the current is known as Ohm’s law.
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संबंधित प्रश्न
If the potential difference across the ends of a conductor is 220 V and the resistance of the conductor is 44 Ω (ohm), then the current flowing through is _________.
- 0.2 A
- 0.5 A
- 2 A
- 5 A
Will current flow more easily through a thick wire or a thin wire of the same material, when connected to the same source? Why?
Calculate the effective resistance across AB?
Rewrite the following statement by selecting the correct option.
The S.I. unit of resistance is __________.
State the limitations of Ohm’s law.
Answer the following question.
Distinguish between Ohmic and non-ohmic substances; explain with the help of example.
What is non ohmic device?
An electronics hobbyist is building a radio which requires 150 Ω in her circuit, but she has only 220 Ω, 79 Ω, and 92 Ω resistors available. How can she connect the available resistors to get the desired value of resistance?
State Ohm’s law? How can it be verified experimentally? Does it hold good under all conditions? Comment.
Why should an ammeter have low resistance?
