Advertisements
Advertisements
Question
Name the unit of electrical resistance and give its symbol.
Solution
The SI unit of electrical resistance is ohm and its symbol is Ω.
APPEARS IN
RELATED QUESTIONS
Why are coils of electric toasters and electric irons made of an alloy rather than a pure metal?
Find the expression for the resistivity of a material and state the SI unit of resistivity.
Four resistances of 16 ohms each are connected in parallel. Four such combinations are connected in series. What is the total resistance?
A car bulb connected to a 12 volt battery draws 2 A current when glowing. What is the resistance of the filament of the bulb? Will the resistance be more same or less when the bulb is not glowing?
How would you connect two resistors in series? Draw a diagram. Calculate the total equivalent resistance.
Tick(✓) the correct choice in the following:
Ohm's law is applicable to
What are ohmic conductors? Give one exmaple. Draw a graph showing the current-voltage relationship for an ohmic conductor.
Define temperature coefficient of resistance.
The slope of voltage (V) versus current (I) is called:
Why should an ammeter have low resistance?