$(i)$ Name and state the law that gives relationship between the current through a conductor and the potential difference across its two terminals. Also, express this law mathematically.
$(ii)$ Draw the $V-I$ graph for this law. Justify your answer.
$(iii)$ Write the name and use of the circuit components whose symbols are given below.
$(i)$ Name and state the law that gives relationship between the current through a conductor and the potential difference across its two terminals. Also, express this law mathematically.
$(ii)$ Draw the $V-I$ graph for this law. Justify your answer.
$(iii)$ Write the name and use of the circuit components whose symbols are given below.
$(i)$ Ohm's law.
It states, "Physical conditions' remaining same, the current flowing through a conductor is directly proportional to the potential difference across its two ends"
Mathematically, we have $V \propto I$
$V = IR$
$(ii)$ The graph is as shown
$(iii)$ $(a)$ Variable resistor: It is used to vary the resistance in the circuit.
$(b)$ Closed key : It allows the current to pass through the circuit.
Similar Questions
Two electric circuits $I$ and $II$ are shown in figure
$(i)$ Which of the two circuits has more resistance ?
$(ii)$ Through which circuit, more current passes ?
$(iii)$ In which circuit, the potential difference across each resistor is equal.
Two electric circuits $I$ and $II$ are shown in figure
$(i)$ Which of the two circuits has more resistance ?
$(ii)$ Through which circuit, more current passes ?
$(iii)$ In which circuit, the potential difference across each resistor is equal.
When do we say that the resistors are connected in parallel ?
When do we say that the resistors are connected in parallel ?
The resistivity does not change if
The resistivity does not change if
A current of $0.5\, A$ is drawn by a filament of an electric bulb for $10$ minutes. Find the amount of electric charge that flows through the circuit.
A current of $0.5\, A$ is drawn by a filament of an electric bulb for $10$ minutes. Find the amount of electric charge that flows through the circuit.
The units of resistance are ampere.
The units of resistance are ampere.