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प्रश्न
What is non-ohmic resistor?
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उत्तर
This is a resistor which does not obey Ohm’s Laws.
V -1 graph for a non-ohmic resistors is not a straight line.
संबंधित प्रश्न
Will current flow more easily through a thick wire or a thin wire of the same material, when connected to the same source? Why?
When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Find the value of the resistance of the resistor.
State Ohm’s law and draw a neat labelled circuit diagram containing a battery, a key, a voltmeter, an ammeter, a rheostat and an unknown resistance to verify it.
A wire of resistance 3 ohm and length 10 cm is stretched to length 30 cm. Assuming that it has a uniform cross section, what will be its new resistance?
What length of copper wire of resistivity 1.7 × 10-8 Ω m and radius 1 mm is required so that its resistance is 2Ω?
State and define Ohm’s law.
What is ohmic device?
What is non ohmic device?
Which of the following is correct for V-I graph of a good conductor?
Why should an ammeter have low resistance?
