Advertisements
Advertisements
प्रश्न
Define the unit of resistance (or Define the unit "ohm").
Advertisements
उत्तर
One ohm (Ω) is the resistance of a conductor when a potential difference of one volt is applied to its ends and a current of one ampere flows through it.
APPEARS IN
संबंधित प्रश्न
Define one coulomb charge.
Name a device which helps to maintain potential difference across a conductor (say, a bulb).
Why do electricians wear rubber hand gloves while working with electricity?
The potential difference between the terminals of an electric iron is 240 V and the current is 5.0 A. What is the resistance of the electric iron?
Write an expression for the electrical power spent in flow of current through a conductor in terms of current and resistance.
A 10 m long wire of a particular material is of resistance 5Ω What will be the resistance if the wire is doubled itself.
A 10 m long wire of a particular material is of resistance 5Ω What will be the resistance if the wire is stretched to double its length?
State Ohm’s law.
Twenty-seven drops of same size are charged at 220 V each. They combine to form a bigger drop. Calculate the potential of the bigger drop.
What does the positive and negative sign of potential convey?
