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Phy Electric

The document covers fundamental concepts of electricity, including electric current, direction of current, circuit symbols, potential difference, electrical resistance, and factors affecting resistance. It explains Ohm's Law, which states that potential difference is directly proportional to current at constant temperature, represented by the equation V=IR. Additionally, the document includes example questions to reinforce understanding of these concepts.

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nishika.gup
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15 views5 pages

Phy Electric

The document covers fundamental concepts of electricity, including electric current, direction of current, circuit symbols, potential difference, electrical resistance, and factors affecting resistance. It explains Ohm's Law, which states that potential difference is directly proportional to current at constant temperature, represented by the equation V=IR. Additionally, the document includes example questions to reinforce understanding of these concepts.

Uploaded by

nishika.gup
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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CURRENT ELECTRICITY

ELECTRIC CURRENT

DIRECTION OF CURRENT
SYMBOLS USED IN CIRCUIT DIAGRAM POTENTIAL DIFFERENCE
ELECTRICAL RESISTANCE FACTORS AFFECTING RESISTANCE

OHM’S LAW
Ohm’s law states that at constant temperature, the
potential difference across any conductor is directly proportional
to the current passing through it.
VαI
V= Constant. I
V= IR
Where, R is the resistance of the conductor
RESISTIVITY

EXAMPLE QUESTIONS

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