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प्रश्न
The graph between V and I for a conductor is a straight line passing through the origin.
What should remain constant in a statement of this law?
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उत्तर
Ohm's law is true only if the temperature of the conductor is constant.
संबंधित प्रश्न
Find the resistance of a conductor if 0.24 A current is passing through it and a potential difference of 24 V is applied across it.
Write the SI unit of resistivity
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Answer the following question.
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State Ohm’s law.
Define Current density.
State microscopic form of Ohm’s law.
Define temperature coefficient of resistance.
Write a short note on superconductors?
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.
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In the context of Ohm's Law, Current (I) is defined as:
From Ohm's Law, since \[I \propto V\], the constant ratio \[\frac{V}{I}\] is defined as:
