How can we maintain a potential difference across a conductor ?
How can we maintain a potential difference across a conductor ?
By using a source of emf. For example, a battery.
Similar Questions
How does the resistance of a wire vary with its cross$-$sectional area ?
How does the resistance of a wire vary with its cross$-$sectional area ?
Study the $V - I$ graph for a resistor as shown in the figure and prepare a table showing the values of $I$ (in amperes) corresponding to four different values of $V$ (in volts). Find the value of current $I$ (amperes) for $V=10$ volts. How can we determine the resistance of the resistor from this graph ?
Study the $V - I$ graph for a resistor as shown in the figure and prepare a table showing the values of $I$ (in amperes) corresponding to four different values of $V$ (in volts). Find the value of current $I$ (amperes) for $V=10$ volts. How can we determine the resistance of the resistor from this graph ?
Define $1$ volt.
Define $1$ volt.
$V -I$ graphs for two wires $A$ and $B$ are shown in the figure. If both the wires are made of the same material and are of equal thickness, which of the two is of more length ? Give justification for your answer.
$V -I$ graphs for two wires $A$ and $B$ are shown in the figure. If both the wires are made of the same material and are of equal thickness, which of the two is of more length ? Give justification for your answer.
What are the factors on which resistance of a conductor depends ?
What are the factors on which resistance of a conductor depends ?