Advertisements
Advertisements
Question
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.
Advertisements
Solution
1) The relationship between the potential difference and the current in a conductor is given by Ohm’s law.
2) The slope of the V–I graph gives the resistance of the conductor.
Slope = `V/I = R`
3) The material used for making connecting wires is copper.
APPEARS IN
RELATED QUESTIONS
Is Ohm’s law universally applicable for all conducting elements? If not, give examples of elements which do not obey Ohm’s law.
Ohm's law gives a relationship between:
(a) current and resistance
(b) resistance and potential difference
(c) potential difference and electric charge
(d) current and potential difference
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.
Which of the following is an ohmic resistance?
Tick(✓) the correct choice in the following:
Ohm's law is applicable to
Choose the correct alternative.
Which of the following is an ohmic conductor?
Ohm’s law states the relationship between power and voltage.
Write a short note on superconductors?
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 ______.
What is the resistance of a conductor through which a current of 0.5 A flows when a potential difference of 2V is applied across its ends?
