Two wires have lengths in the ratio 1:4 ...

Two wires have lengths in the ratio `1:4` and radii in the ratio `1: 2`. The resistivities of the materials of the wires are in the ratio `5: 1`. Compare their resistances.

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NAVNEET PUBLICATION-CURRENT ELECTRICITY-EXERCISE

Two wires have lengths in the ratio 1:4 and radii in the ratio 1: 2. T...
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Fill in the blanks: The coulomb is the SI unit of………….
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Fill in the blanks: The ampere is the SI unit of………
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Fill in the blanks: The ohm is the SI unit of………..
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Fill in the blanks: The SI unit of electric potential difference is t...
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Fill in the blanks: The SI unit of electric power is the …………..
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Fill in the blanks: 1 volt=………../1 coulomb.
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Fill in the blanks: 1 ampere=………./1 second.
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Fill in the blanks: ……….=1 joule per second.
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Fill in the blanks: 1 ohm =………./1ampere.
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Fill in the blanks: 1mA=………..A.
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Fill in the blanks: Resistance =……………/electric current.
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Fill in the blanks: 1 microvolt=………volt.
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Fill in the blanks: The electrical work done when a current of 0.1 A...
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Fill in the blanks: To increase the effective resistance in a circuit...
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Fill in the blanks: The potential difference between the terminals of...
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Choose the correct alternati e and write it along its allotted alphabe...
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