Advertisements
Advertisements
प्रश्न
SI unit of resistance is:
विकल्प
mho
joule
ohm
ohm meter
Advertisements
उत्तर
ohm
APPEARS IN
संबंधित प्रश्न
Graph showing the variation of current versus voltage for a material Ga As is shown in the figure. Identify the region of
(i) negative resistance
(ii) where Ohm's law is obeyed.
The relationship between the potential difference and the current in a conductor is stated in the form of a law.
1) Name the law.
2) What does the slope of V-I graph for a conductor represent?
3) Name the material used for making the connecting wire.
Name the physical quantity whose unit is "ohm".
Name the law which is illustrated by the above V−I graph.
An electric bulb draws 1.2 A current at 6.0 V. Find the resistance of filament of bulb while glowing.
Consider the sacle of voltmeter shown in the diagram and answer the following questions :
(a) What is the least count of the voltmeter?
(b) What is the reading shown by the voltmeter ?
(c) If the voltmeter is connected across a resistor of 20 `Omega` how much current is flowing through the resistor?
- Name and state the law which relates the potential difference and current in a conductor.
- What is the necessary condition for a conductor to obey the law named above in part (a) ?
Choose the correct alternative.
Which of the following is an ohmic conductor?
Obtain the macroscopic form of Ohm’s law from its microscopic form and discuss its limitation.
Which of the following is correct for V-I graph of a good conductor?
