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प्रश्न
How is electric current related to the potential difference across the terminals of a conductor?
Draw a labelled circuit diagram to verify this relationship.
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उत्तर
V = IR, where V is potential difference, I is current and R is constant for a given resistor as its resistance. Hence, current I is directly proportional to V.
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संबंधित प्रश्न
An electrical bulb is marked 200V, 100W. Calculate the electrical resistance of its filament. If five such
bulbs are connected in series to a 200V supply, how much current will flow through them?
Name the physical quantity whose unit is "ohm".
The unit of electrical resistance is:
(a) ampere
(b) volt
(c) coulomb
(d) ohm
Which of the following is an ohmic resistance?
Answer the following question.
Distinguish between Ohmic and non-ohmic substances; explain with the help of example.
The ratio of the potential difference to the current is known as ________.
A metal rod of length 10 cm and a rectangular cross-section of 1 cm × `1/2` cm is connected to a battery across opposite faces. The resistance will be ______.
State Ohm's Law. Represent it mathematically.
