She puts her life at stake,
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▪️Here figure of speech is preposition.
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The current through a metallic element is proportional to the potential difference applied between its ends,
Providence the temperature remains constant.
V = IR,
where R is the resistance of the element.
The SI unit of resistance is the Ohm .
If a potential difference of 1 volt is applied across an element, and a current of 1 Ampere passes through it, the resistance of the element is called 1 Ohm .
The resistance of a wire is directly proportional to its length and inversely proportional to its area of cross section.
The resistance of wire also depends on the material.
It increases slightly with increase in
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